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Lesson Plan
Curated OER

Lattice Energy

For Teachers 9th - 12th
A few basic facts about lattice energy are listed at the top of the page, including the formula used for calculations. Two charts follow: one for lattice energy and another for ion sizes. There is no work to do on this handout, but it...
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Worksheet
Curated OER

Signed Numbers Word Problems

For Students 7th - 8th
In this signed numbers worksheet, students solve 10 different word problems that include using signed numbers in each problem. First, they determine the status of an account given the information stated in the problem. Then, students...