1. Activity Set 2.4 ii) CLASS PPTX Visual Algebra for Teachers

2. Chapter 2 LINEAR EXPRESSIONS, EQUATIONS AND GRAPHS Visual Algebra for Teachers

3. Activity Set 2.4 Linear Expressions and Equations Visual Algebra for Teachers

4. Black and red tiles and black and red n-strips MATERIALS

5. 6.If the collection of tiles in a certain Black-Red Chair is doubled and 22 black tiles are added, the net value of the new collection of black and red tiles will be 4. Which Black-Red Chair is it? Start with a complete version of the nth figure (don’t cancel out zero pairs yet). Use the table and sketch your algebra piece work in the left column (include brief notes about what you are doing) and write the corresponding symbolic steps in the right column. Check your final solution. Questions (share answers)

6. 7.What does the (n + 1)st Black-Red Chair look like? Use your black and red n-strips and black and red tiles, as needed, to model the figure; you do not need to show edge pieces. Sketch and describe the (n + 1)st Black-Red Chair. Label the pieces clearly. Questions (share answers)

7. 8.Two consecutive Black-Red Chairs have a combined net value of -51. Which two figures are they? For the first step; start with complete versions of the nth and (n + 1)st figures (don’t cancel out zero pairs yet). Use the table and sketch your algebra piece work in the left column (include brief notes about what you are doing) and write the corresponding symbolic steps in the right column. Check your final solution. Questions (share answers)

8. Classwork (in teams, as assigned) Do Activity Set 2.4 questions: #9 - 10 & Sharing #11 – 15: Sharing #16: Sharing #17: Sharing #18: Sharing #19 - 20: Sharing

9. Homework HW Quiz (2.4) due before 2 p.m. next class. See Moodle for HW questions (to study) and quiz Prep PPT/Quiz (2.5) due before 2 p.m. next class. See Moodle for posted PPTX (to read) and quiz Turn in hw (2.4) due 2 p.m. in one week: See HW schedule