Reflection of Light With Two Plane Mirrors- Double Mirrors Placed at a Number of Angles

This visual, manipulative-based format for teaching geometric proofs nicely scafolds learners' development of mathematical reasoning and proof skills. This sample represents a proof of the congruence of vertical angles in four formats;...

Challenge students' understanding of area and the coordinate plane with this exit ticket exercise. Given the ordered pairs corresponding to the vertices of two triangles, young mathematicians must find the area of the quadrilateral...

Three letter-sized mini posters can be displayed in your elementary geometry class when teaching about angles. One provides information about degree measurement and additive properties, and the other two define acute, right, obtuse,...

Add some visual support to your elementary geometry lessons with this set of printable shape cards. From triangles and squares to octagons and nanogons, this simple resource can be used in countless ways to develop children's knowledge...

When presented with categorical data, a two-way frequency table is a great way to summarize the information. Pupils organize categorical data using a two-way table, then use the tables to determine missing data and to calculate simple...

Break out the base ten blocks for this presentation on long division. Looking at two separate examples, step-by-step instructions are provided for dividing two- and three-digit numbers by single-digit divisors. Engage the class by...

Illuminate your class with this fabulously interactive app about light! Brilliant animation follows a beaming little robot as he teaches youngsters about every glowing object and concept under the sun.

Discover the parallel structure of parallel lines. Provided with two parallel lines on a coordinate plane, the presenter shows that the rise and run, or slope, of the two lines are the same. The resource, which is a portion of a larger...

How can geometry learners remember the difference between supplementary and complementary angles? Not only will the video explain how to remember these two angles, but it also demonstrates how to find unknown angles knowing the degree of...

Let there be light in your classroom with a video that explains that light travels in waves, the electromagnetic spectrum contains seven colors, and the color of an object depends on which light waves it reflects and absorbs. With...