Tag Archives: mathematics

A Geometric Proof of the Pythagorean Theorem

Oktober 13th, 2017

Students will see an animated presentation of the proof of the Pythagorean Theorem. This animated PowerPoint presentation uses shearing and the invariance of the area of triangles with congruent bases and heights to show a step-by-step geometric proof of the Pythagorean Theorem.

Trig River

Oktober 13th, 2017

Students learn about and use a right triangle to determine the width of a „pretend“ river. Working in teams, they estimate of the width of the river, measure it and compare their results with classmates.

Linear Functions

Oktober 13th, 2017

In this tutorial, „Linear functions of the form f(x) = a x + b and the properties of their graphs are explored interactively using an applet.“ The applet allows students to manipulate variables to discover the changes in intercepts and slope of the graphed line. There are six questions for students to answer, exploring the […]

Measure It! Paperclips

Oktober 13th, 2017

These 20 images give students practice measuring the height and width of various pictures with paperclips. Ready to print, each sheet contains a spot for students to write in their measurement of the pencil, ice cream treat, insect, car, and many other common objects. This is excellent practice for students to explore measurement, what aspects […]

Pizza Fractions

Oktober 13th, 2017

The classroom poster helps students understand fractions as parts of a whole by illustrating pizzas and fractions of pizzas. These eight images show a whole pizza, a pizza cut in half and in quarters with various pieces removed. It is an excellent visual to present students as they dive into more complex understanding of fractions […]