# What is a Function?

#### Unit 1 – Week 2

- Define function (F-IF.1)
- Vertical line test (F-IF.1)
- Domain and range (F-IF.1)
- Evaluate a function (F-IF.2)

**Day 6** – Forms of Functions (Defining Functions Recursively)

Ideas for cross-curricular student work: My students will be reading the short story, The Most Dangerous Game in their English class. A Bellringer Idea is to have students graph fear vs. distance and fear vs. time.

- Presentation (
*See below for Day 6 Presentation Download*) - Handout (Including homework, bellringer, and exit slips)
- Extensions

**Day 7** – Forms of Functions (Writing Functions as Expressions)

**Day 8** – Forms of Functions (Translating Functions from Words and Expressions into Tables)

**Day 9** –Forms of Functions (Translating Functions from Tables into Graphs)

**Day 10** –Forms of Functions (Translating Graphs into Words/Describing graphs)

Assessment Examples

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