Curated OER
Identities and Trigonometric Values
Students solve trigonometric equations. In this precalculus lesson, students prove trigonometric identities using the Pythagorean Theorem. They apply the addition formulas for sine and cosine to prove different identities.
Curated OER
Numbers Make Sense
Second graders explore number values by completing estimation problems in class. In this place value instructional activity, 2nd graders identify the use of decimals in numbers and how they relate to fractions or parts of a whole....
Curated OER
Using Calculators And Spreadsheets
Students discuss the advantages of using calculators and spreadsheets in balancing checkbooks. They also identify the pros and cons of using these tools in adult education classrooms.
Curated OER
Making a Multiplication Lesson Matter
Teaching students about multiplication can be made a little easier with lessons that will peak their interest.
DOGO Media
Dogo News: "Mad Minute" Tests Could Make You a Math Whiz
How well do you know your addition and subtraction facts and multiplication tables? In this article you'll learn what brain studies show about the value of memorizing and using such fact sets.
University of Cambridge
University of Cambridge: Nrich: Flip Flop
Use this game to improve your quickness and memorization of addition facts. You can set the facts you want to practice on this game. Just follow the instructions below it!