Percent Increase and Decrease Quiz
100+ results
Filters
Grade
Subject
Format
Resource type
Standard
Theme
Audience
Language
Programs & methods
Unit 2.9 - AP Biology - Cell Compartmentalization - PowerPoint (New CED 2025)
AP Biology Unit 2 CellsTopic 2.9 Cell Compartmentalization20-Slide PowerPoint with Warm Ups & Exit TicketsTeach how internal organization increases cellular efficiency with clarity and structure while staying fully aligned to the 2025 AP Biology CED. This 20-slide PowerPoint for Topic 2.9 Cell Compartmentalization helps students understand how membrane-bound organelles create specialized environments for different biochemical processes. It connects cellular structure to metabolic efficiency and
9th - 12th, Higher Education
Biology
AP® Computer Science A: 8.1 Inheritance (Slides)
Release Notes:Slides are completely re-designedMore concise explanations for key concepts and justification for inheritanceCode snippets now included using J-Doodle links.____________Overview. These slides are teachable, include a short activity at the end and are completely editable to your liking. Complete with animations, explanations, code and algorithms covering inheritance, polymorphism, abstract classes and interfaces. Describe the concept of inheritance and how it can be used to increase
10th - 12th, Higher Education
Computer Science - Technology
CCSS
CCRA.L.3
, CCRA.L.4
, CCRA.L.6
S3.1 Discontinuities in Ionisation Energy, HL (IBDP Chemistry)
This PowerPoint lesson explains discontinuities in first ionisation energy for IBDP Chemistry HL (first examination 2025), helping students understand deviations from periodic trends. It provides a clear, structured explanation of how these discontinuities give evidence for sublevels and electron pairing. Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms to form one mole of gaseous 1+ ions. Across a period, first ionisation energy generally i
11th - 12th
Chemistry
BUNDLE R1.4 Entropy and Spontaneity HL Only Content (IBDP Chemistry)
This bundle of 3 PowerPoints covers IBDP Chemistry HL R1.4 Entropy and Spontaneity for first examination 2025, including entropy changes, Gibbs energy, spontaneity and the link between Gibbs energy and equilibrium. It provides a clear, carefully sequenced set of lessons that helps students move from core thermodynamic ideas to the higher-level calculations and interpretations required for IB exam success. Entropy and spontaneity are central ideas in thermodynamics. Entropy is a measure of disord
11th - 12th
Chemistry
S3.1 Metallic and Non-Metallic Continuum (IBDP Chemistry)
This PowerPoint lesson explores the metallic and non-metallic continuum, showing how bonding and oxide behaviour change smoothly across Period 3. Designed for IBDP Chemistry (first assessment 2025), it helps students connect electronegativity, bonding type, and acid–base properties to observable chemical trends. Chemical bonding and element behaviour exist on a spectrum rather than in rigid categories. This lesson develops the idea of a continuum from metallic to ionic to covalent bonding using
11th - 12th
Chemistry
R1.4 Entropy, HL (IBDP Chemistry)
This PowerPoint lesson covers entropy and disorder for IBDP Chemistry (first examination 2025), helping students understand energy dispersal and predict entropy changes in physical and chemical processes. It provides a clear, structured approach to both conceptual understanding and calculation of standard entropy changes. Entropy (S) is a measure of the disorder or randomness of particles in a system, as well as how energy is distributed. Systems with higher entropy have particles that are more
11th - 12th
Chemistry
Also included in: BUNDLE R1.4 Entropy and Spontaneity HL Only Content (IBDP Chemistry)
Unit 9.4 - AP Environmental Science - Greenhouse Gas Increase - PowerPoint
Unit 9: Global ChangeAP Environmental Science – Topic 9.4: Increases in Greenhouse Gases20 Slide PowerPoint Presentation | CED Aligned | Zero PrepHelp students understand why greenhouse gas levels are rising with this engaging, classroom-ready PowerPoint for AP Environmental Science Topic 9.4. This 20-slide presentation explains the major sources of greenhouse gases and how human activities are driving changes in Earth’s atmosphere. This lesson follows a consistent, student-friendly format that
9th - 12th, Higher Education
Biology, Environment
Spring STEM Activity - Bean Bind Print and Digital Bundle
Looking for an Easter or spring STEM / STEAM activity sure to keep your kids engaged in collaborative, fun critical thinking & problem solving? The basic premise:Due to equipment malfunctioning at the bean factory, several types of beans are all mixed-up, putting the Easter Bunny in a bind! Individually or in partners/groups, students will design and build a device to sort the jelly beans from the mixed-up beans. (You can skip the story if it's too cutesy for your kids, or if you want to avoid E
2nd - 8th
Engineering, Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
S3.2 Homologous Series (IBDP Chemistry)
This PowerPoint lesson introduces homologous series in organic chemistry for IBDP Chemistry (first examination 2025) and explains how organic compounds are grouped based on their functional group and structure. It helps students understand patterns in organic molecules and predict trends in physical and chemical properties. A homologous series is a family of organic compounds that share the same functional group and general formula. Members of the same series have similar chemical properties but
11th - 12th
Chemistry
Games and Puzzles
These are group of puzzles that I have collected that I have used for fun in the classroom and for bonuses on tests/quizzes.
6th - 12th
General Science, Not Subject Specific, Visual Arts
S3.2 Infrared Spectroscopy, HL (IBDP Chemistry)
This PowerPoint lesson covers infrared (IR) spectroscopy for IBDP Chemistry HL (first examination 2025), focusing on identifying functional groups and interpreting spectra. It provides a clear, structured approach to analysing IR data and linking absorption peaks to molecular structure. Infrared spectroscopy is an analytical technique used to identify the types of bonds present in a compound based on how they absorb infrared radiation. Chemical bonds vibrate at specific frequencies, and when IR
11th - 12th
Chemistry
Unit 9.7 - AP Environmental Science - Ocean Acidification - PowerPoint New CED
Unit 9: Global ChangeAP Environmental Science – Topic 9.7: Ocean Acidification20 Slide PowerPoint Presentation | CED Aligned | Zero PrepHelp students understand how increasing CO₂ levels are changing ocean chemistry with this engaging, classroom-ready PowerPoint for AP Environmental Science Topic 9.7. This 20-slide presentation explains ocean acidification and its impacts on marine organisms and ecosystems. This lesson follows a consistent, student-friendly format that keeps your class focused a
9th - 12th, Higher Education
Biology, Environment
Unit 9.5 - AP Environmental Science - Global Climate Change - PowerPoint New CED
Unit 9: Global ChangeAP Environmental Science – Topic 9.5: Global Climate Change20 Slide PowerPoint Presentation | CED Aligned | Zero PrepHelp students understand the broader impacts of a changing climate with this engaging, classroom-ready PowerPoint for AP Environmental Science Topic 9.5. This 20-slide presentation connects greenhouse gas increases to global climate change and examines the environmental and societal consequences. This lesson follows a consistent, student-friendly format that k
9th - 12th, Higher Education
Biology, Environment
Energy Flow in Ecosystems: Food Webs & Trophic Dynamics AP Biology Presentation
Help your students truly understand how energy shapes ecosystems with this AP Biology–aligned Investigating Energy Transfer in a Food Web Presentation: Energy Dynamics in Ecosystems, designed to turn abstract ecology concepts into clear, data-driven understanding. This engaging, visually structured presentation walks students through how energy enters ecosystems, moves through producers and consumers, and decreases across trophic levels due to the 10% rule. Students explore how food webs fun
9th - 12th
Biology
CCSS
RST.11-12.1
, RST.11-12.2
, RST.11-12.3
+7
S3.1 Structure of the Periodic Table (IBDP Chemistry)
This PowerPoint lesson introduces the structure of the periodic table, helping IBDP Chemistry students understand how elements are organised and why patterns in properties occur. Designed for first assessment 2025, it builds a clear foundation in classification, electron configuration, and periodic trends required for exam success. The periodic table arranges elements by increasing atomic number into groups (columns) and periods (rows), allowing patterns in chemical and physical properties to be
11th - 12th
Chemistry
Unit 7.6 - AP Environmental Science - Reduction of Pollutants - PowerPoint
Unit 7: Atmospheric PollutionAP Environmental Science – Topic 7.6: Reduction of Air Pollutants20 Slide PowerPoint Presentation | CED Aligned | Zero PrepHelp students understand how air pollution can be controlled and reduced with this engaging, classroom-ready PowerPoint for AP Environmental Science Topic 7.6. This 20-slide presentation explores technologies, policies, and strategies used to decrease air pollution and improve air quality. This lesson follows a consistent, student-friendly format
9th - 12th, Higher Education
Biology, Environment
S3.1 Electrons and the Periodic Table (IBDP Chemistry)
This PowerPoint lesson explains how electron configuration links directly to the structure of the periodic table, helping IBDP Chemistry students predict atomic structure from position. Designed for first assessment 2025, it builds the essential skills needed to deduce electron configurations and interpret group and period trends with confidence. The periodic table is arranged by increasing atomic number, and its structure reflects the arrangement of electrons in atoms. This lesson clearly shows
11th - 12th
Chemistry
BUNDLE S3.1 The Periodic Table: Classification of Elements, SL & HL (IBDP Chem)
This comprehensive PowerPoint bundle covers IBDP Chemistry S3.1 Periodic Table: classification of elements (SL & HL), including structure, periodic trends and transition elements. It provides a complete sequence of lessons designed to build deep understanding of how elements are organised and how their properties change across the periodic table. The periodic table is a systematic arrangement of elements by increasing atomic number, where patterns in physical and chemical properties repeat (peri
11th - 12th
Chemistry
Unit 8.1 - AP Biology - Environment Responses - PowerPoint (New CED 2025)
AP Biology Unit 8 Ecology Topic 8.1 Responses to the Environment 20-Slide PowerPoint Presentation with Warm Ups & Exit TicketsMake teaching Ecology simple, structured, and fully aligned to the 2025 AP Biology CED. This 20-slide PowerPoint for Unit 8, Topic 8.1 Responses to the Environment gives you everything you need to teach the lesson with built-in engagement and daily formative assessment. Every slide begins with a thought-provoking warm up and ends with an exit ticket so you can instantly
9th - 12th, Higher Education
Biology
End of Year Summer STEM Activity - Water Slide Print & Digital Resource Bundle
This summer STEM challenge is the perfect end of the year activity to keep your students engaged through the very last day of school! The Challenge:In partners/groups, students will design and build a water slide built for speed, thrills, and safety. Resource includes:✅ NGSS aligned standards, Grades 2 – 8✅ Teacher Tips- Links to STEM Challenge How-To videos - Materials and timing - Criteria & Constraints (including modifications to increase difficulty for older students) - Measuring results - P
2nd - 8th
Engineering, Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Easter STEM Challenge - Carrot Carriage Print and Paperless Bundle
Looking for an Easter or Spring STEM / STEAM challenge activity to keep your kids engaged in collaborative, fun problem-solving? The basic premise:Individually or in partners/groups, students will design and build a carriage to hold cargo and roll downhill, made primarily of carrots. Resource includes:NGSS aligned standards, Grades 2 – 8Teacher Tips- Links to STEM Challenge "How-to" videos - Materials and timing - Criteria & Constraints (including modifications to increase difficulty for older s
2nd - 8th
Engineering, Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Spring or Easter STEM Activity - Egg Drop Print and Paperless Bundle
Egg-hanced is a STEM / STEAM lesson sure to engage and delight your students as a spring or Easter activity! The basic premise:This is a classic egg-drop challenge with optional modifications. Individually or in partners/groups, students will design and build a device to protect an egg from cracking when dropped from a predetermined height. Resource includes:NGSS aligned standards, Grades 2 – 8Teacher Tips- STEM Challenge How-to Video Links - Materials and timing - Criteria & Constraints (includ
2nd - 8th
Engineering, Social Emotional Learning
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
BUNDLE S3.1 The Periodic Table: Classification of Elements, SL Only (IBDP Chem)
This bundle of PowerPoints covers IBDP Chemistry SL Topic 3.1: The Periodic Table – Classification of Elements (first examination 2025) and provides a complete, structured teaching sequence aligned to the updated IB specification. It is designed to build deep conceptual understanding of periodic trends, classification and electron configuration, while preparing students for exam-style explanations. Topic 3.1 focuses on how elements are classified in the periodic table and how their position expl
11th - 12th
Chemistry
Summer STEM Challenge - Amphibious Phone Print and Paperless Bundle
This summer STEM challenge is the perfect end of year activity to keep your students engaged through the very last day of school! The basic premise:Individually or in partners/groups, students will design and build a summer-proof* case for a smart phone. (No actual smart phones will be harmed in this activity; they’ll create weighted test phones!) *Summer-proof = waterproof & retrievable when dropped in a body of water Resource includes:NGSS aligned standards, Grades 2 – 8Teacher Tips- Links to
2nd - 8th
Engineering, General Science
NGSS
K-2-ETS1-2
, K-2-ETS1-3
, MS-ETS1-2
+7
Showing 1-24 of 100+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands