# Doug Sieck May Adopt-A-Farmer Video

*Posted: 5/14/2018*

Video: https://youtu.be/cmaYydntgc8

- **Core content standard questions**:

**Use and interpret multiplicative equations****4.OA.1**- Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal or written statements of multiplicative comparisons as multiplication equations. Example: Tom has 7 toy cars; Joe has 5 times as many. How many toy cars does Joe have? Answer: 35, because 7 x 5 = 35 or 5 x 7 = 35.

**Story:**Farmer Doug is working cattle and giving them vaccinations. He worked 50 cattle today, tomorrow he will work 3 times as many, the following day he will work half of the original amount of cattle.- Question: How many cattle will Farmer Doug have worked at the end of the three days?
- Work: 50 + (50 x 3) + (50 X ½)
- 50 + (150) + (25) = 225
- Answer: Farmer Doug worked 225 cattle.

- **Discussion question**:

- Doug talked about cattle needing vaccines like people do. What are some of the ways you keep yourself healthy all year long?
- Examples: handwashing, balanced diet, vitamins, getting vaccines, exercise, etc.

- **Teacher resource**: