Mr. Lee’s Blog

The 6th Grade Math Class has moved into studying geometric figures. We will start with an introduction to geometry and then we will move onto measuring and classifying angles (acute, right, obtuse, straight). Then we will learn about angle relationships (vertical, adjacent, complementary, and supplementary) and find angle measures.

In the second part of the chapter we will examine polygons. We will classify polygons, in particular we will spend time on triangles (by sides: scalene, isosceles, and equilateral; and by angles: acute, obtuse, and right) and quadrilaterals (parallelogram, rectangle, rhombus, square, trapezoid). We will finish the chapter by looking at congruent figures.

The big ideas in this chapter are:

• Students will be able to determine the relationship between angles and describe these relationships.
• Students will be able to use facts about angles and triangles to find unknown angle measures.
• Students will be able to draw triangles and quadrilaterals that fit a given description.

The parent letter for chapter 9 and some at home activities have been posted on SchoolSpeak.

The 7th grade has moved into a chapter on two-dimensional geometry. They started with perimeter and area and examined parallelograms, triangles, and trapezoids. They also looked at circles. They learned about terminology for circles (i.e. arc, central angle, chord, circle, center of a circle, diameter, radius, sector)

This week they are going to study circumference (i.e. the distance around a circle) and area (i.e. the amount of space inside of a circle). Then they will put it all together and look at the area of composite and irregular figures.

The big ideas for this chapter are:

• Students will be able to learn formulas for the perimeter and are of figures that have length and width.
• Students will be able to divide geometric figures intro familiar shapes such as rectangles, triangles, and parts of circles.
• Students will be able to learn the names and properties of parts of circles.
• Students will be able to draw figures on a graph to find out measurements from the graph.

The parent letter for Chapter 9 and some family activities have been posted on SchoolSpeak.

The 6th grade class will start a chapter on probability soon. They will start with an introduction to probability and will learn how to classify events as: impossible, unlikely, as likely as not, likely, or certain. They will also study what a complement is in terms of probability. Then, the class will experience the difference between experimental probability and theoretical probability.

The class will also look into sample space (i.e. how to graphically display all outcomes), disjoint events (i.e. events that cannot happen at the same time), independent and dependent events (i.e. events that do not depend and depend on, respectively, on what happened before), and making predictions (i.e. using experimental probability to make guesses).

The big ideas for this chapter are:

• Students will be able to list the outcomes of compound events.
• Students will be able to find the theoretical probability of each outcome.
• Students will be able to write probabilities in different forms.
• Students will be able to find the probability of disjoint events and independent events.
• Students will be able to determine whether a set of events is independent or dependent.

The parent letter for Chapter 8 and some at home activities have been posted on SchoolSpeak.

The seventh grade class has ventured away from graphs and functions and has started a chapter on plane geometry. We will identify points, lines, planes, and angles. We will look at geometric relationships (parallel, perpendicular, & skew lines; and parallel & perpendicular planes). We’ll examine angle relationships (adjacent, vertical, alternate interior, alternate exterior, and corresponding angles). Then we will study triangles, coordinate geometry, congruent polygons, and transformations (slides, reflections, and rotations). The lesson on tessellations will be extra credit on the test for the chapter.

The parent letter for Chapter 8 and some at home activities have been posted on SchoolSpeak.