Complementary Angles: Lesson

If you use a fabulous lesson plan, then your pupils can become fabulous at solving equations. The 24th installment of 25 incorporates the use of if-then statements to illustrate the properties of equality used in solving two-step linear...

Solving systems by substitution can be a challenging topic in algebra I. Here is a instructional activity that builds on students' understanding of intercepts to begin the process of substitution, and all work is reinforced...

Give your scholars the support they need to work with formulas. A reference page offers definitions and picture examples of perimeter, area, surface area, volume, the Pythagorean theorem, a variety of shapes, and more. 

Investigate algebraic applications of complementary angles. Young scholars watch as the instructor describes and defines complementary angles. He then shows an example of finding an unknown value of x given expressions for a pair of...

Supplementary, obtuse, acute, complementary angles. It's good to know what all of these mean, but let's focus on one at a time. Complementary angles always add up to 90 degrees. So if given one angle in a complementary angle problem, the...

Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...

Confronted with a system of equations? This tutorial briefly describes the three ways systems of equations can be solved. Substitution, graphing, and the elimination method are all covered. The only thing this video is missing is example...

Provide this video as additional instruction on how to solve inequalities when you need to multiply positive fractions. The focus of this video is on how to use the multiplication property of inequalities correctly. The lecturer explains...

Probability, place, and time. There is a lot going on in this real-world word problem. I highly recommend watching this video to see how the instructor sorts out and sets up all the information to solve this problem. Take notes and pay...

Are complementary angles nice to each other? That's not what complementary means in math. Complementary angles are two angles that add up to 90 degrees and form a right triangle. So if given one value in a problem about complementary...