In this Cyberchase video segment, the CyberSquad must estimate the measurements of Spout the Whale in order to find a cage that will fit him.Ű_í_

In this video segment from Cyberchase, Inez and Lucky figure out how to keep track of the number of clones as they continue to multiply.

This short video and interactive assessment activity is designed to teach third graders about place value problems involving grouping of items.

In this video segment from Cyberchase, the CyberSquad measures Judge Trudy's land claim by using tarps, fence posts and a grid made with rope.

This short video and interactive assessment activity is designed to teach fourth graders about using greater than and less than.

This short video and interactive assessment activity is designed to teach fourth graders about calculating total weight from scales (metric units).

This short video and interactive assessment activity is designed to teach third graders about calculating and comparing capacities with illustrations (metric units).

This short video and interactive assessment activity is designed to give fourth graders an overview of capacity (metric units).

This example focuses on six letters to the editor. All six letters attempt to describe and compare the amount of taxes paid on two different incomes: $30,000 and $200,000. Tax rates are expressed in absolute dollars, tax per $1,000 of income, $1 of tax per income amount, and as percents of annual income. Students need to be able to organize the relevant information and convert each stated tax rate to a standard form to help make comparisons. Additionally, students need to be aware that letter writers may make their own mistakes!

This task is intended for instructional (rather than assessment) purposes, providing an opportunity to discuss technology as it relates to irrational numbers and calculations in general. The task gives a concrete example where rounding and then multiplying does not yield the same answer as multiplying and then rounding.

In this video tutorial, the instructor demonstrates how to determine how to calculate the area of a rectangle and assess knowledge with a quiz. [3:01]

Use different size triangle to determine how to solve for the area in this video lesson. Take quiz to check understanding. [3:41]

This video lesson demonstrates how to calculate the area of a triangle. It includes detailed examples including ones that use the Pythagorean Theorem. Students can check their understanding with an assessment. [10:43]

Students will observe the patterns of apparent motion of the sun using simple tools.

In this video tutorial, determine the volume of a rectangular prism and assess learning with a quiz. [4:21]

Spreadsheets Across the Curriculum activity. In advance of an actual lab activity, students virtually simulate the calibration of a laboratory micropipettor. QL: Accuracy and precision.

This problem involves the meaning of numbers found on labels. When the level of accuracy is not given we need to make assumptions based on how the information is reported. The goal of the task is to stimulate a conversation about rounding and about how to record numbers with an appropriate level of accuracy, tying in directly to the standard N-Q.3. It is therefore better suited for instruction than for assessment purposes.

Spreadsheets Across the Curriculum module. Students build a spreadsheet to find the combination of mini-pizzas and calzones that maximizes revenue given constraints on labor time and baking time.