Illustrative Mathematics
Illustrative Mathematics: F Tf.1 What Exactly Is a Radian?
For this task, young scholars use a piece of string or another tool to measure the radius of the circle and then mark off the corresponding arc length on the unit circle as many times as they need to for 0, 1, 2, 3, 4, 5, and 6 radians....
Khan Academy
Khan Academy: Unit Reasoning Lesson
Unit reasoning helps us make sense of measurements by converting between measurement units and making reasonable estimates. For the Praxis test, we need to know common measurement units for length, time, volume, and mass, as well as how...
Alabama Learning Exchange
Alex: Souper Scooper
This hands-on, inquiry based lesson is an extension of the AMSTI Science Module, Solids and Liquids. Young scholars use nonstandard units to measure beans in a soup mix. Students predict how many beans will be in a scoop. Young scholars...
Rice University
Rice University: Cynthia Lanius: Golden Ratio
This site introduces students to the definition of golden ratio. It gives them a chance to estimate ratios and predict which figures are closest to the golden ratio. There is a link on this page that provides charts for students to...
Alabama Learning Exchange
Alex: What Is an Inch?
This activity gives the students the opportunity to see what an inch really looks like. It also provides them with a chance to be creative using various inch materials and to create a visual for what an inch is. It is a great lesson to...
TeachEngineering
Teach Engineering: It's About Time
In past times, ocean navigators tossed a piece of wood over the side of their ships and noted how long until the ship passed the wood. They used this time measurement and the length of the ship to calculate their speed and estimate how...