See yesterday’s post for the link to the debrief from the Polygraph activity

Today was Day 3 of the Desmos-based activities we’ve been using in class to re-introduce ourselves to parabolas. In class yesterday, many of you had some difficulty in properly describing parabolas or in identifying features of parabolas to ask about in order to guess which one your partner had chosen. This shows us that there is a **need for a shared vocabulary** when describing these entities. Today’s lesson reviewed that vocabulary.

## Today’s Files

- Notes on Parabola Vocabulary
- HW 3.3 – Parabola Vocabulary Practice
- Lesson Video (reviewing most of the key vocabulary discussed in the notes above)

## Cumulative IXL Modules

- Characteristics of quadratic functions (from the Algebra 1 section)
- Identify the direction a parabola opens
- Find the vertex of a parabola
- Find the axis of symmetry of a parabola