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Chapter 6: CK-12 Algebra Explorations Concepts, Grade 4

Difficulty Level: At Grade Created by: CK-12
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In these concepts, you will continue to develop eight key concepts of algebra and will practice your problem solving skills. There are eight concepts, and each one focuses on a key algebraic thinking strategy. You will focus on describing, identifying your job, planning, solving, and checking your thinking.

Chapter Outline

Chapter Summary


In these concepts we used proportional reasoning when we interpreted map scales and bar graphs and when we determined better buys. We thought about equality and inequality and wrote equations when we interpreted and reasoned about pictures of pan balances. We saw variables as unknowns when we solved for the weights of blocks on scales and for the unknowns in circles and arrows diagrams. We also saw variables as varying quantities when we completed tables for functions. In all of the concepts, we practiced interpreting representations of mathematical relationships when we looked at pan balances, circle and arrow grid diagrams, tables of values, weight scales, weigh equations, better-buy signs, maps, and bar graphs.

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