Screencasts

In this screencast, I demonstrate how to use CODAP to make statistical inferences based on a data set and the relationships within it.

The North Carolina Math 1 Teaching Standard addressed by this task is:

NC.M1.S-ID.1

Summarize, represent, and interpret data on a single count or measurement variable.

Use technology to represent data with plots on the real number line.

The Common Core Mathematical Standards addressed by this task are:

CCSS.MATH.CONTENT.6.SP.A.3

Recognize that a measure of center for a numerical data set summarizes all of its values with a single number, while a measure of variation describes how its values vary with a single number.

CCSS.MATH.CONTENT.6.SP.B.5

Summarize numerical data sets in relation to their context, such as by:

CCSS.MATH.CONTENT.6.SP.B.5.C

Giving quantitative measures of center (median and/or mean) and variability (interquartile range and/or mean absolute deviation), as well as describing any overall pattern and any striking deviations from the overall pattern with reference to the context in which the data were gathered.

In this screencast, I demonstrate how to construct different triangles based on their properties using GeoGebra

The North Carolina Mathematical Teaching Standards addressed by this task is:

NC.7.G.2

Understand the characteristics of angles and side lengths that create a unique triangle, more than one triangle or no triangle. Build triangles from three measures of angles and/or sides.

NC.M3.G-CO.14

Apply properties, definitions, and theorems of two-dimensional figures to prove geometric theorems and solve problems.

The Common Core Mathematical Standards addressed by this task are:

CCSS.MATH.CONTENT.7.G.A.2

Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle.

CCSS.MATH.CONTENT.HSG.CO.D.12

Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line