# Grade 3 Unit 6

## Instructional Strategies

This is a link to ready-made rulers that can be used when teaching students how to find elapsed time. (Source: K-5 Math Teaching Resources): http://www.k-5mathteachingresources.com/support-files/elapsedtimerulersample1.pdf

Measuring Metrically with Maggie - This resource offers strategies using the metric system to measure and estimate liquid volumes and masses of objects. Scroll to the bottom of the page to access questions that the teacher might use in a whole group, small group, or individual setting. (Source: MathIsFun.com) http://www.mathsisfun.com/measure/metric-system-introduction.html

Common Core: 3rd Grade Mathematics- Scroll down the page to locate the links to “density,” “weight,” and “mass” in order to measure and estimate liquid volumes and masses of objects and to solve one-step word problems involving masses or volumes that are given in the same units. (Srouce: ExploreLearning)http://www.explorelearning.com/index.cfm?method=cResource.dspStandardCorrelation&id=1501

## Station Activities

Students can practice determining elapsed time by using this interactive elapsed time matching activity offered at quia.com: http://www.quia.com/mc/66516.html

This is a link to ready-made printable cards that contain word problems that have the student find elapsed time. These can be used whole group or in a center. (Source: K-5 Math Teaching Resources): http://www.k-5mathteachingresources.com/support-files/elapsedtimewordproblems.pdf

Students are asked to choose other containers that will hold a liter and then investigate to see if their estimates are correct. (Source: K-5 Math Teaching Resources): http://www.k-5mathteachingresources.com/support-files/moreorlessthanaliter.pdf

## Interactive Activities

• Elapsed Time- Practice finding elapsed time given a starting time and an ending time. Elapsed Time is one of the Interactivate assessment explorers. http://www.shodor.org/interactivate/activities/ElapsedTime/

• Elapsed Time Two- Given a starting time and elapsed time practice finding the ending time. Elapsed Time Two is one of the Interactivate assessment explorers. http://www.shodor.org/interactivate/activities/ElapsedTimeTwo/

• Can You Fill It?: This is a link to a game that students can use to practice estimating how much liquid an object can hold. http://pbskids.org/cyberchase/math-games/can-you-fill-it/