7.EE.B.4 | Expressions & Equations
Grade 7
Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.
MATH | Expressions & Equations
Find FREE, ready-to-teach resources aligned to 7.EE.B.4, developed with teachers and artists in partnership with STEM researchers.
7.EE.B.4 | Expressions & Equations
Grade 7
Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.
Created with purpose: see how resources connect to this standard.
Showing 1 of 1 unit
Electric Crystals: Exploring how crystal symmetry can power everyday life

Crystals aren't magic, but they are amazing! In this student-driven, lecture-free lesson, students will do card sorts, build hands-on models, solve engineering design puzzles, and more! The whole experience is connected through a beautifully crafted comic and supporting videos.
Alignment summary( Connected)
Lesson 4
Through a (heavily scaffolded) calculation to compute the dipole moment of a crystal subunit, students interpret variables for distance and electric charge.
Included resources
4 lessons and 3 supporting media items.

Lesson 1


