Funding for the VITAL/Ready to Teach collection was secured through the United States Department of Education under the Ready to Teach Program.
Academic standards correlations on Teachers' Domain use the Achievement Standards Network (ASN) database of state and national standards, provided to NSDL projects courtesy of JES & Co.
We assign reference terms to each statement within a standards document and to each media resource, and correlations are based upon matches of these terms for a given grade band. If a particular standards document of interest to you is not displayed yet, it most likely has not yet been processed by ASN or by Teachers' Domain. We will be adding social studies and arts correlations over the coming year, and also will be increasing the specificity of alignment.
In this TV411 activity, students learn to calculate 10% of a number by understanding it as one-tenth of a number. Eventually, they observe that calculating 10% can be accomplished by moving the decimal point one place to the left. They also learn to calculate a 15% tip. The video clip reinforces the procedure and shows some estimation strategies.
A Tip on Tipping QuickTime Video
1. Read the following to your students: "When you go out to eat it is customary to tip waiters and waitresses for their service. Usually, people tip at least 15%. When you tip, how do you figure it out?" Discuss how students have estimated tips in the past.
2. Distribute the Calculating Tips handout .
3. Ask the students to complete the handout.
4. Discuss the handout. (Note: The video segment emphasizes the procedure and uses estimation informally. Be sure students understand the reasoning from the handout. Also, make sure students don't use calculators or double digit multiplication.)
5. Play the A Tip on Tipping QuickTime Video .
6. Discuss the strategy illustrated in the video.