This week in math, we will be applying our understanding of proportionality to the coordinate plane. Students already know how to determine whether a graph is proportional (straight line that hits at (0,0) or nonproportional (not straight and/or doesn't hit at (0,0)), and this week we will work on finding the constant rate of change between two values on a coordinate plane by using the change in Y/change in X method. This will blend into finding the slope of a line and being able to explain what it means. This also involves a solid understanding of unit rate, as many of the slopes they will find will have a denominator of one. Students will be assessed on constant rate of change/slope on Friday.
This week in math, we will be finishing up our lesson on scale factor - the multiplicative factor that is used to produce enlargements (scale factor greater than 1.0) and reductions (scale factor less than 1.0). Identifying and applying the scale factor is often an easier (and quicker) way to solve proportions than the traditional cross-multiplication method. We will finish the week with a quick lesson and quiz on graphing proportional relationships. For a relationship to be proportional on a coordinate plane, it must:
1) Be a straight line
2) Pass through the origin (0,0)
During our fourth week of school we will continue our study on proportional relationships. In the beginning of the week we'll extend our Friday's lesson, solving proportional equation. We will then extend the lesson by using proportional equations, and our knowledge of proportional relationships to solve problems involving scale drawings, maps, and indirect measurement. Retakes for previous quizzes will be given on Wednesday and Thursday.
Update - Retakes will only be given for 7.NS.A.2d
In our fourth week of science, we will focus on differentiating between the intended, unintended, positive, and negative consequences of technology. A discussion about the growing use of cell phones will be our introduction to the topic. We will continue to study the engineering design process with an emphasis on adaptive vs. assistive bioengineering. A comprehensive test will be given on Thursday and Friday.
I'm Kyle Bohle and I teach 7th grade science.