Middle schoolers investigate the validity of da Vinci's proportion theory by recording human measurements on scatter plots. In groups of three, they record each other's height and wingspan to create a Powerpoint presentation, chart, or...

Learners solve problems with ratios and proportions. In this algebra instructional activity,students apply the concept of ratios and proportions to the real world.

Explore how resizing an object affects its area. The set of lessons challenges young mathematicians to design a mascot for electronic devices. These designs undergo resizing to determine how scale factors of dilation affect area.

Students differentiate between similar and congruent triangles. For this geometry lesson, students identify the missing side and angle of a triangle. They identify the different ratio and proportion of the sides of a triangle.

Tenth graders solve for missing sides on a triangle using the Pythagorean Theorem. In this geometry lesson, 10th graders are introduced to basic trigonometry functions as they solve problems of right triangles. They discuss the...

Students create their dream house using a spreadsheet for measurements. In this measurements and drawings lesson, students apply concepts of units and conversions as they build and create different shapes. They use Google Sketch-up...

Students collect data and crate a distribution sample. In this statistics lesson, students compare and contrast their collected data. This assignment requires the students to be comfortable with navigating the internet.  

Students review their physical models of the objects on their playground at school. Using the model, they convert it into a map with a scale and key. To end the lesson, they use the map to locate different objects and measure the...