It feels good to be back at school! Here’s my 9th grade math lesson from day 2 (the first day of Coordinate Geometry), for the two 47-minute sections.
Day 1: 1-a Distance Formula
1) Name Graphs: Check off completion. [This assignment was to have students write their names on graph paper using only straight lines that begin and end at coordinate points on a grid.] Have 3 students draw a letter of their names on the board with points labeled.
2) Practice Quiet Coyote [my routine for getting attention–his ears are open but his mouth is shut]
3) Mini-Lesson: Distance Formula [taught using the 3 student examples]
– Look at how to solve for vertical and horizontal line distances.
– Look at diagonal distances to introduce the distance formula. Elicit the right triangle shape and Pythagorean Theorem.
4) Practice using Kuta worksheet (start with lines drawn on a grid, then ordered pairs). Introduce distance formula.
5) Formative Assessment: Plickers Exit Ticket (1 multiple problem with two ordered pairs) via Kuta multiple choice. Students turn their sheets and cards to the inbox.
6) HW: Haese & Harris Exercise 5A1 (answer key included)
7) Support for Math Enrichment: Extra WS practice. Give feedback on ET.
Section 1: Students were slow to take out paper for notes and turn in HW. We need to make this process more automatic. I noticed that many needed prompting to label the notes with the skill and the date, or even to use their binders (which seem to have grown into a pile in the back of my room over the semester I was out on maternity leave). Some students do have some excellent, organized notes from the past semester, so I might start having students volunteer to share their notes for my “absent work” binder to help absent kids catch up. I forgot to practice Quiet Coyote explicitly but the quieting was better today. For the practice, students really had enough time for the first four problems (mostly because they got stuck with simplifying radicals–the answer key had listed the square root of 8 as 2 square root of 2). I had to write more directions for the close of class on the board to clarify what I wanted for the exit ticket (for example, students didn’t realize they had to turn in their work as well as the Plickers cards). I need to label the Plickers cards with the student names for both sections and make sure they go into a separate bin.
Section 2: This lesson went smoother overall because of anticipating cueing of the HW checking process (in which I handed Plickers cards out to save time later), prepping them to segway from a picture to two ordered pairs, and completing the exit ticket. More students completed the ordered pairs questions, but we will still review. A principal intern came in to observe my class, and it was good to hear this feedback: “Thank you for allowing me to come observe your class today and welcome back!! I liked that you put the answers on the back of the sheet so that they could self check, it fostered more discussion than I would have thought. The students were so engaged. It was interesting to listen to a couple of conversations where the student answer didn’t match the back and so the next step was to ask a partner about what they had come to and why. Plus those Plicker cards were awesome – such a great way to use technology without the lag time. I had never seen that before but I will be sure to remember it for a high tech/low complication formative assessment measure.”