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Proving 45-45-90 and 30-60-90 Right Triangles: Guided Notes
Help your geometry students understand the "why" behind the algorithms for special right triangles with this 7-page investigation and guided notes activity. Your students will use the Pythagorean Theorem and the properties of isosceles and equilateral triangles to discover how to solve for any side of a 45-45-90 and 30-60-90 triangle. Clear diagrams and step-by-step algebraic proofs allow students to develop the foundational understanding for working with these common right triangles, ensuring a
10th - 11th
Algebra 2, Geometry, Math
CCSS
HSA-CED.A.4
, HSA-REI.A.1
, HSG-CO.C.10
Also included in: Special Right Triangles: Proving/Practice BUNDLE w/BONUS Poster!
Subtracting Integers Anchor Chart
This anchor chart includes information about subtracting integers with counters and on a number line. Give a step by step algorithm. A black and white and colored version are included. This can be reduced to be printed for an individual student binders/notebooks or enlarged to be printed as a poster anchor chart. Other Anchor Charts In Integers Unit:Adding IntegersMultiplying IntegersDividing IntegersInteger Operations Bundle
6th - 8th
Algebra, Algebra 2, Applied Math
Cosmo's Minus Method (Poster / Handout)
Cosmo's Minus Method is an adaptation of Cramer's Rule I made for my Algebra 2 class. I wanted them to have this algorithm as an alternative to substitution or elimination to solve moderately difficult systems of 2 linear equations in standard form. I chose not to call it Cramer's Rule because a quick google search would reveal how to use Cramer's Rule with the available TI-84 Graphing Calculators. Also, the title of the algorithm "Cosmo's Minus Method" comes from the name of the crazy neighbor
7th - 11th
Algebra, Algebra 2, Math
MAGIC SQUARE - ALGEBRA 1 - Solving Equations Style
After teaching your Algebra 1 students how to solve all sorts of equations, they do need a lot of practice so that the algorithm becomes automatic. MAGIC SQUARE - ALGEBRA style is an activity where students solve 16 different types of equations with the goal that the SUM of every row, column and diagonal is the same. ENJOY!
7th - 10th
Algebra, Algebra 2, Arithmetic
Factoring Lesson 4: Factoring trinomials when a = 1 (AC Method)
Factoring trinomials whose leading coefficient (a) is 1. Notes included.
I do not teach the "guess and check" method of factoring; students struggle with it because there is no process. The "AC method" uses a process/algorithm to easily factor a trinomial; it relies on the concept of factoring by grouping.
1. Multiply a and c
2. Find factors of "ac" that add up to "b"
3. Rewrite "bx" using the factors you found
4. Factor by grouping
Because of this method, the only "new" thing between thi
8th - 11th
Algebra, Algebra 2
Synthetic Division Practice - Fun Riddle
A quick worksheet I made to help students with identifying a remainder when using Synthetic Division. I used this for my Algebra 2 class that consists of 10th - 12th graders. Outcome: Students will be able to use Synthetic Division to identify a remainder in order to solve a holiday riddle. Essential Question: How can you use a similar algorithm to divide polynomials, and what does the quotient indicate about factors of the polynomial? Key Vocabulary: Factor Theorem Polynomial long divisionR
10th - 12th
Algebra, Algebra 2, Arithmetic
CCSS
HSN-CN.C.8
, HSA-SSE.A.1
, HSA-SSE.A.2
+3
The Quadratic Formula - An Introduction Lesson with Practice Algebra
This guided notes lesson introduces students to solving quadratic equations by using the quadratic formula. The formula is presented with step by step instructions, followed by a worked out example and 2 try it yourself problems. There are 4 practice problems for students to try after the lesson. The discriminant for all problems is a whole number, so these are introductory level equations to solve. What's Included?Page 1: Formula and algorithm Page 2: Example Pages 3-4: Try It Yourself Prob
7th - 10th
Algebra, Algebra 2, Math
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Inverse Relations and Functions Worksheet | Algebra 2 | Bilingual
Master Inverse Relations and Functions with this Scaffolded Bilingual Worksheet!Are your Algebra 2 or Pre-Calculus students working on switching inputs and outputs, or learning to verify inverses algebraically? This bilingual (English & Spanish) worksheet guides students step-by-step from foundational true/false properties to linear reversals, radical functions, visual reflections, and composition proofs! 🔍 What’s Included?Part 1: Basic Concepts 🧠 – A rapid True/False conceptual check focusin
7th - 12th, Higher Education
Algebra 2, Spanish
Completing the Square Lesson | Step-by-Step Notes, Worksheet & Answer Key
⭐ Completing the Square | Scaffolded Lesson | Step-by-Step Notes, Worksheet & Answer KeyTake students step by step through solving quadratics by completing the square with this comprehensive, scaffolded worksheet! Designed for Algebra 1, Geometry, and Algebra 2, this print-and-go lesson builds student understanding from perfect squares all the way to solving quadratic equations with simplified radical answers. Scaffolded approach starting with perfect square reviewGuided examples with step-by-st
8th - 11th
Algebra, Algebra 2
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Solving 5 different types of equations practice
A great study tool to help students see the different type of equations they will need to know how to solve in the beginning of Algebra 1.
1) one step equations: multiply by the reciprocal or divide (5 problems)
2) one step equations: add or subtract (5 problems)
3) two step equations: add or subtract first then multiply by the reciprocal or divide (10 problems)
Multi-Step equations:
4) distributing (5 problems) combine like terms (5 problems)
5) variables on both sides (6 problems)
I found
7th - 10th
Algebra, Algebra 2, Math
Linear Functions Graphic Organizer and Note Guide
In this organizer, multiple representations of linear functions are displayed in a succinct and connected way. I use this document to help students "frame in" the learning goals, summarize lessons, create a useful reference, and develop sense of function by repeatedly focusing on all four faces(tables, graphs, equations, and situations.) I also find this document useful for planning.
7th - 11th
Algebra, Algebra 2, PreCalculus
Linear Functions Lesson Frameworks Bundle
Help focus your curriculum on big ideas. This framework is designed to accompany and guide the study on linear functions. We know that multiple representations are a key to communication and algebraic power. These guides provide a solid foundation for the rest of your curriculum and are ready to go day 1. Best of luck this school year!
These frameworks have been powerful tools for my students. They support connections which develop into problem solving strategies. I have saved time by condensi
7th - 11th
Algebra, Algebra 2, Other (Math)
Linear Functions Tables
Multiple representations of linear functions are helpful for problems solving and communication. Students are asked to practice changing tables into equations and completing tables using patterns.
7th - 11th
Algebra, Algebra 2
Linear Functions Lesson Framework Student Handouts
Help focus your curriculum on big ideas. This framework is designed to accompany and guide the study on linear functions. We know that multiple representations are a key to communication and algebraic power. These guides provide a solid foundation for the rest of your curriculum and are ready to go day 1. I also have a free organizer sheet available for download that you may find helpful. Best of luck this school year!
These frameworks have been powerful tools for my students. They support con
7th - 11th
Algebra, Algebra 2, Other (Math)
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