During this lesson, I like to show the accompanying video on two-way tables.
Source Url: http://www.youtube.com/watch?v=xpqcUsEZenk (accessed May 10 2014)
I stop the video periodically and have students write down an idea that they felt was important or a question that they might have. By the end of the video, if students still have questions that have not been answered we address them as a class. Then, I ask students to do a think-pair-share by writing down two ideas that they feel are important to constructing a two-way table.
During today's Investigation, students will have an opportunity to both read and construct simple two-way frequency tables. I will ask my students to work in pairs.
Depending on the confidence level of the group, I may advise some students to begin with Question #2. If necessary, I will pull together a group of students to complete Question #2 step-by-step. After filling in the cells in the table, we will calculate the joint frequencies using row and column totals. I think that this intervention will provide sufficient scaffolding for all of my students to complete the remaining three problems.
To close today's lesson, I will ask students to split a sheet of paper with their partner (each student gets a half sheet). I will ask the class to respond to the following a 3-2-1 Reflection.
Here is the prompt: