Illustrative Mathematics
Kiri's Mathematics Match Game
Learning math is so much more fun when it involves playing games. Following the rules of the classic game Memory, young mathematicians flip over two cards at a time as they look for numbers whose sum or difference is equal to the value...
Curated OER
Combinations to 20
Ten frames are a great way to help visualize simple math problems, evidenced in this clear and concise word problems worksheet. Each question features two ten frames for learners to use as they solve. All numbers are 20 or less....
Curated OER
Translate Word Phrases and Sentences into Equations
Use this video to show your learners an example of how to translate word phrases into an equation to solve a real-world problem. The presenter begins with a review of how to use cross products to solve a proportion, including how to do...
Waterloo Mathematics
Grade 7 Patterning and Algebra: Algebraic Expressions
Classmates solve 18 different problems that are mostly word problems that apply algebraic expressions. They draw different combinations of masses on a scale that would balance. They also simplify expressions and solve for x in a number...
Curated OER
The Random Walk
Deep mathematical thinking is found with just a coin and a number line. Combining computing some probabilities in a discrete situation, and the interpretation of a function, this simple task gives learners a lot to think about on...
Curated OER
Geo Jammin' By DeSign - Day 2, Lesson 7: Start At Square One
Students examine new shape possibilities by combining two and four triangles using manipulatives.
Curated OER
Equation Translation
Learners translate simple mathematical equations into sentences. In this equation lesson, students identify trigger words to translate simple math equations into sentences and sentences into mathematical equations.
Curated OER
Fantastic Fractions
Fourth graders explore and examine through hands-on experience and reasoning the concept of fractions. They solve problems involving multiplication and division of whole numbers and addition and subtraction of simple fractions and decimals.
Curated OER
Oral Language in Mathematics
Third graders examine fractions by descriptively writing about them. For this number sense lesson, 3rd graders read number sentences and compare fractions based on their size. Students explain fractions to a friend by writing a friendly...
Curated OER
Calculate the Slope of a Line Using Two Points
Find that slope! This video does an excellent job of demonstrating how to use the slope formula to find the slope of a line using two points. The instructor first reviews the definition of slope of a line, then works three problems using...
Curated OER
Geo Jammin' By DeSign - Day 1, Lesson 2: Dancing Duo
Second graders and teachers identify geometric vocabulary word by searching a geometry website. They create a Quilt Word Wall using the geometry words.
Curated OER
Tangram Tantrums
Students discuss tangram vocabulary, and act out slide, flip, and turn. They observe tangram puzzles on a web page, and solve their own tangram puzzles.
Curated OER
Geometric Shape Dances
Students use movement and dance in order to strengthen mathematical understanding of different geometric shapes. The movements are imitating the drawing of shapes and they pick one to make into a dance. Upon beginning the dance music can...