IM Certified® Blog

Counting on Counting Collections

Counting on Counting Collections

By Sara Baranauskas, IM Lead Curriculum Writer, Grade 1 and IM Certified® Facilitator Counting Collections is an engaging and playful mathematical routine that supports and builds students’ sense of mathematical identity and develops a joy for doing mathematics. Young...

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Help Students Know, Use, and Enjoy Quadratics

Help Students Know, Use, and Enjoy Quadratics

By Joseph Koelsch, IM Certified® Facilitator “I’ve said it before: equations are the devil’s sentences. The worst one is that quadratic equation, an infernal salad of numbers, letters, and symbols.” - Stephen Colbert Did you ever feel the same way? I know that I felt...

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Exploring Ratio Reasoning with Student Work

Exploring Ratio Reasoning with Student Work

By Tashana Howse, IM Certified® Facilitator The relationship between fractions, ratios, and proportions is introductory to students' development of the study of Algebra. Therefore, it is important for students to engage in ratio reasoning that positions them to reason...

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Strategies for Instituting Equitable Math Instruction

Strategies for Instituting Equitable Math Instruction

Dionne Aminata, Senior Director of Strategic Initiatives, Marketing, Illustrative Mathematics Rolanda Baldwin, Vice President of Mathematics, UnboundEd Illustrative Mathematics and UnboundEd both agree that achieving racial justice in math education starts with the...

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The Story of Grade 8 Unit 3: Linear Relationships

The Story of Grade 8 Unit 3: Linear Relationships

By Ashli Black and Elisa Smith Grade 8 is a year marked by shifts in mathematical focus. Where grades 6 and 7 introduce students to negative numbers and using them in operations, grade 8 introduces them to irrational numbers and using them with the Pythagorean...

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Creating Collaborative Math Classrooms

Creating Collaborative Math Classrooms

This blog post was written by William McCallum, co-founder and CEO of Illustrative Mathematics, and originally posted on the ImagineLearning blog. Collaboration is a core value at Illustrative Mathematics. Creating a high-quality instructional system — with curriculum...

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Giveing Tuedsday Heart

Support Free Math Instruction for All Learners

As a nonprofit, we rely on the support of our generous community. Each contribution allows us to reach more classrooms, develop new educational materials, and create opportunities that inspire curiosity and a love for learning.