- real world movies
- agriculture
- animals
- architecture
- art & music
- business & commerce
- design
- earth science
- environmental
- movie close-ups
- science & technology
- space science
- sports
- transportation
- teaching & learning
- algebra
- mathematics
- problem solving
- science & technology
- activities by grade
- jaime escalante
- kay toliver
- TFC Members login
- news & reviews
- e-store
- district sales
- home
Battle of the Batteries
The capacity of a battery is the quantity of electrical current it can produce for a length of time, measured in a unit called “milliampere hours” ( abbreviated as “mAh”). This determines how long the battery lasts.
| Subject: Mathematics; Problem Solving Topics: - Use Proportional Reasoning - Ratios and Proportions Grades: 7 - 9 Concepts: - Ratio - Proportion Knowledge and Skills: - Can use proportional reasoning to solve problems. - Can set up and compare ratios. - Can set up and solve a proportion. |
Download Activity: Battle of the Batteries (PDF)
Problem Solving Movie:
The Shape of Phones
As cell phones continue to shrink and the demand for additional features like cameras, music and email continues to grow, every millimeter counts. Show your students how the designers and engineers at Motorola rely on math to make everything fit.
Running time 5:35 minutes.
The Real World Update
Get our latest movies and web updates first! Sign up to receive our weekly newsletter.
|
|