David's Math Content

This 23-slide PowerPoint presentation is recommended as useful instruction before learning to calculate distance between points in a coordinate plane (CCSS.MATH.CONTENT.6.NS.C.8). It is meant for students who have already learned about absolute value, but have not learned about basic operations involving negative numbers yet (i.e. addition/subtraction). Students will learn how to calculate the distance between any two points on a number line using their absolute values. They will see that this s

This 16-slide PowerPoint presentation uses a three-step process to compare different numbers. Writing a statement of inequality using the numbers an correct inequality symbol is the 1st step. Explaining in words what the statement of inequality means is the 2nd step. The 3rd step is to interpret the relative position of each number on a number line (both horizontal & vertical number lines are used). Positive & negative numbers are both used in examples. Those viewing this presentation have alrea

This 20-slide PowerPoint presentation tests and develops three rules involving reflections resulting from sign changes in an ordered pair. The three rules involve changing the x-coordinate sign only, changing the y-coordinate sign only, and changing both coordinate's signs. Thus the result is reflection across the y-axis, reflection across the x-axis, and reflection across the origin, respectively. Students are expected to have previous knowledge of plotting & identifying ordered pairs, identify

This 16-slide PowerPoint presentation stresses quadrant location and the signs of the ordered pairs that fall into each particular quadrant. It assumes prior knowledge of plotting & identifying points in the coordinate plane. Examples lead students to try to first figure out on their own what a set of un-plotted order pairs have in common. The pairs will fall in the same quadrant and all x-coordinate signs will match as well as all y-coordinates matching. Students can take a 5-question quiz at t

This 22-slide PowerPoint presentation serves as an introduction to the coordinate plane. It begins by defining a coordinate plane and explaining its uses. Then construction of the plane, its parts, and terminology are covered. The rest of the presentation explains and simulates how to plot ordered pairs and how to determine ordered pairs for points already plotted. Fractional values and coordinates of zero are included in the simulation as well. The content is based on Common Core standard CCSS.