Percent Increase and Decrease Quiz
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60 Grade 6–8 Percent & Financial Mathematics Real-World Problems
Build real mathematical confidence with 60 rigorous, real-world percent and financial math problems designed specifically for Grades 6–8. Every single problem in this resource uses a consistent, structured "Show Your Work" template that guides students step-by-step through multi-step reasoning — no shortcuts, no single-answer fill-ins. This is the kind of deep, applied practice that prepares students for standardized assessments, real-life financial decisions, and the critical thinking demands o
6th - 9th
Applied Math, Other (Math), Statistics
Psychology Lab Weber's Law and Hearing: How Much Louder to Notice a Difference?
Students apply Weber's Law (ΔI = k × I, where k = 0.1 for hearing) to calculate the just noticeable difference (JND) in loudness for ten stimulus intensities ranging from 20 to 110 dB. After completing the data table, students plot intensity on the x-axis and JND on the y-axis, identify the linear relationship, and explain in everyday language how the JND grows proportionally with intensity. A real-world application problem asks students to calculate the minimum loudness increase a concert-goer
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Smell: How Much Stronger Before You Notice?
Students apply Weber's Law (ΔI = k × I, where k = 0.05 for smell) to calculate JNDs for ten odor concentrations ranging from 20 to 500 AU (arbitrary units). After completing the data table and plotting the graph, students describe the linear intensity-JND relationship and explain how the olfactory system's sensitivity relates proportionally to baseline concentration. A real-world problem asks students to calculate the minimum odor increase a fragrance evaluator named Parfumia would detect at 120
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Taste: How Much Saltier Before You Notice?
Students apply Weber's Law (ΔI = k × I, where k = 0.20 for saltiness) to calculate JNDs for ten salt concentrations ranging from 1 to 40 g/L. The relatively high k value for taste (compared to vision and kinesthesis) gives students data that demonstrates taste's lower sensitivity to proportional changes. After graphing, students describe the linear relationship and explain what the larger k value implies about gustatory discrimination. A real-world problem asks students to calculate the minimum
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Temperature: How Hot Before You Feel the Diff.
Students apply Weber's Law (ΔI = k × I, where k = 0.07 for temperature) to calculate JNDs for ten temperatures ranging from 10 to 55°C. The lab introduces students to thermal sensation as a measurable, Weber's Law-governed sensory modality. After graphing and identifying the linear relationship, students explain how the JND for temperature grows with baseline temperature. A real-world problem asks students to calculate the minimum temperature increase a hot tub enthusiast named Chilldaddy would
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Touch: How Much Pressure Before You Feel More?
Students apply Weber's Law (ΔI = k × I, where k = 0.14 for touch/pressure) to calculate JNDs for ten pressure intensities ranging from 50 to 1500 g. The wide range of values — from light touch to heavy pressure — gives students data that clearly illustrates the proportional scaling of JND across a broad sensory range. After graphing, students describe the linear relationship. A real-world problem asks students to calculate the minimum pressure increase a massage therapist named Squishy would nee
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Vision: How Much Brighter Before Your Eye Notices
Students apply Weber's Law (ΔI = k × I, where k = 0.02 for brightness) to calculate JNDs for ten light intensities ranging from 100 to 3000 candelas (cd). The very low k value for vision — the lowest in the collection alongside kinesthesis — demonstrates that the visual system is among the most sensitive to proportional changes, requiring only a 2% change for detection. After graphing, students note the linear relationship and discuss the implications of the small k value. A real-world problem a
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Kinesthesis: How Much Heavier Before You Feel It?
Students apply Weber's Law (ΔI = k × I, where k = 0.02 for kinesthesis) to calculate JNDs for ten lifted weights ranging from 100 to 5000 g. Sharing the same k value as vision (0.02), this lab allows for cross-modal comparison of sensitivity and demonstrates that the kinesthetic system — despite sensing a very different type of stimulus — matches visual sensitivity in proportional discrimination. After graphing, students describe the linear relationship. A real-world problem asks students to cal
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Investigative Career Interests: Do Juniors or Seniors Score Highe
Students complete the IIP RIASEC Markers Holland Code assessment at openpsychometrics.org and record only their Investigative (I) score, which reflects interest in science, research, and analytical thinking. Students pool Investigative scores with classmates, separating results by grade level. Junior and senior scores are entered into an independent samples t-test to evaluate whether career interest differences are statistically significant. Students analyze group averages, interpret statistical
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
AP Stats Card Sort Activity - Match Graphs with Summary Statistics
This AP Statistics Card Sort Activity is an interactive way for students to practice describing and comparing one-variable quantitative data. Instead of a worksheet, students engage in hands-on learning by matching graphs, numerical summaries (mean, median, mode, IQR, standard deviation), and distribution characteristics. Perfect for a portion of the AP Stats Unit 1 (Exploring One-Variable Data), this card sort helps students build deeper understanding of shape, center, spread, and unusual feat
9th - 12th
Statistics
Psychology Lab Juniors vs. Seniors: Who Is More Hypersensitive?
Students complete the Hypersensitive Narcissism Scale (HSNS) measuring covert narcissism — characterized by hypersensitivity to criticism, self-absorption, and fragile self-esteem — then collect scores from junior and senior classmates to run an independent samples t-test. The lab is one of the more conceptually sophisticated in the collection, asking students to consider whether hypersensitive narcissism might change across high school years. Juniors navigating high-stakes performance pressure
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Fun Statistics Personality Quiz: Are You the Mean, Median, or Mode?
Ever wondered how to make statistics concepts like mean, median, and mode stick with your students? This quirky and engaging personality quiz is the perfect solution! It transforms a core math lesson into a fun journey of self-discovery. Instead of just memorizing definitions, this quiz asks students seven relatable, multiple-choice questions based on everyday scenarios—like choosing pizza toppings, picking a movie, or deciding on an outfit. Based on their answers, they'll find out if their per
6th - 9th
Math Test Prep, Other (Math), Statistics
Psychology Lab Autism Spectrum Traits in Juniors vs. Seniors: A t-Test Lab
Students complete the Autism Spectrum Quotient (AQ), a widely used self-report measure of autism-spectrum-associated traits such as social skill differences, attention switching, and attention to detail. Students record their scores and contribute to a class dataset organized by grade level. Junior and senior scores are entered into an independent samples t-test to determine whether differences in autism spectrum trait expression are statistically significant across grade levels. Students interp
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Tired and Grumpy: Does Sleep Quality Predict Negative Affect?
Tired and Grumpy: Does Sleep Quality Predict Negative Affect? Students complete the Groningen Sleep Quality Scale (GSQS) and the PANAS Negative Affect subscale, then pool data to calculate a Pearson r. The lab connects sleep neuroscience — specifically amygdala reactivity to sleep deprivation — to emotional experience, providing a biological mechanism for the predicted correlation. Students analyze the bidirectional cycle in which poor sleep increases negative emotion and negative emotion disr
8th - 12th, Adult Education, Higher Education
Psychology, Statistics
AP Stats Unit 3 CED Vocab FREE Crosswords Surveys, Sampling, Experimental Design
FREE AP Statistics Unit 3 Crosswords — Surveys, Sampling, and Experimental Design Vocabulary PracticeBring a fun twist to vocabulary review with this FREE AP Statistics crossword set for Unit 3: Collecting Data: Surveys, Sampling, and Experimental Design. These two ready-to-use crosswords reinforce essential terms from the AP Statistics CED Unit 3. Use them as bellringers, homework, sub plans, or quick review before quizzes or tests. Includes: Survey & Sampling Vocabulary Crossword Experiment
9th - 12th
Algebra 2, Applied Math, Statistics
Target Toss Regression Lab: Linear/Exponential/Power Models (AP Stats/Precalc)
Aim - Toss - Model: Target Toss Lab for Linear, Exponential & Power (AP Precalculus, Algebra 2, AP Statistics)Bring regression to life in AP Statistics and Precalculus with this target toss lab! Students collect real data, then compare linear, exponential, and power models using log transformations, residuals, and r². It's a hands-on, data-rich investigation. In this safe “candy toss” lab, students collect data at increasing distances, compute success rates as proportions, and use log transfo
9th - 12th
Algebra 2, PreCalculus, Statistics
AP Bio Data Analysis Mega-Bundle: MMMR + Standard Deviation & SEM
✨Equip your students with the full range of AP Biology–aligned data analysis skills—from simple averages all the way to standard deviation, standard error of the mean, and error bars. This comprehensive Descriptive Statistics Mega-Bundle includes everything you need to teach, practice, reinforce, and assess Mean, Median, Mode & Range AND Standard Deviation/SEM. Across PDF presentations, guided notes, video lessons, skills practice, cut-and-paste review, quizzes, FRQs, and graphing activities,
9th - 12th
Biology, General Science, Statistics
CCSS
HSS-ID.A.1
, HSS-ID.A.2
, HSS-ID.A.3
+22
Psychology Lab Juniors vs. Seniors: Do Femininity Traits Change? A BSRI Lab
Students complete the Bem Sex Role Inventory (BSRI) and record only their Femininity subscale score, then collect scores from junior and senior classmates to run an independent samples t-test. The Femininity subscale measures self-reported traits historically associated with femininity — warmth, nurturance, sensitivity, and compassion — regardless of the students gender. The lab examines whether these interpersonally oriented traits change meaningfully between junior and senior year, and invites
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Want Friends, Fear People: Unmet Belonging Needs and Social Anx.
Students complete the Belonging/Love subscale of a Maslow-based needs assessment and the Liebowitz Social Anxiety Scale (LSAS), then pool paired scores from 9 classmates to calculate a Pearson r. The lab examines a clinically important paradox: people who most want social connection may simultaneously be most afraid of it. Students explain the psychological mechanism — unmet belonging needs can intensify the stakes of social evaluation, increasing fear of rejection and feeding social anxiety — a
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Is It Anxiety or Just About Health? Comparing Two Constructs
Is It Anxiety or Just About Health? Comparing Two Anxiety Constructs Students complete the Short Health Anxiety Inventory (HAI-18) and the GAD-7 General Anxiety scale, then pool data to calculate a Pearson r. The lab examines whether health anxiety is a specific form of general anxiety or a distinct clinical construct, and explores how heightened attention to bodily sensations differs from generalized worry. Discussion connects the lab to post-pandemic increases in health anxiety and challenge
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Juniors vs. Seniors: Who Feels More Connected to Nature?
Students complete the Connectedness to Nature Scale (CNS), which measures the degree to which a person feels part of the natural world, then collect scores from junior and senior classmates to run an independent samples t-test. The lab explores whether environmental identity and nature connectedness — shown in research to buffer stress and support well-being — differs between the two grade levels. Students consider whether time spent outdoors, exposure to nature during adolescence, or the increa
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Standard Deviation Foldable Guided Notes and Practice for Statistics
This hands on resource is designed to help your students understand and evaluate the Standard Deviation from a set of data. Many students not only have a difficult time finding the standard deviation by hand, but also get confused with notation and whether they are finding the sample standard deviation or the population standard deviation. These organizers will clarify the formulas and usages for your students in a straight forward, easy to follow,low prep activity. Included in the Lesson: T
9th - 12th
Algebra, Algebra 2, Statistics
CCSS
HSS-ID.A.4
Also included in: Algebra 2 and PreCalculus Foldable Notes and Organizers Bundle
AP Bio Graphing & Statistics - Standard Deviation, SEM, and Error Bars Practice
✨Take the stress out of teaching AP Bio statistics! Whether you’re a brand-new AP Biology teacher or a veteran looking for a no-prep way to review, this AP Biology – Calculating Standard Deviation & Standard Error of the Mean Practice Pack gives you everything you need to help students master these challenging skills. You’ll get: ✅ Student-friendly video lesson that clearly explains standard deviation, standard error, and error bars — perfect for direct instruction, review, or flipped classro
9th - 12th
Biology, General Science, Statistics
CCSS
HSS-ID.A.2
, HSS-ID.A.4
Also included in: AP Biology Statistics Bundle | SD, SEM, Error Bars & Graphing Practice
AP Statistics Exam & Test Review Coloring Activity for Units 1–4 from CED
Make AP Statistics review meaningful and fun with this comprehensive coloring activity covering Units 1–4 of the AP Statistics CED. Students answer a variety of difficulty levels of context-rich multiple-choice questions aligned to College Board expectations. Each question corresponds to a coloring region, helping students visually self-check their understanding as they complete the activity. Great to have on hand for a sub day or the unexpected school schedule change.Topics include one-variable
9th - 12th
Algebra 2, PreCalculus, Statistics
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