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How to Find the Slope in Cabri Jr. on the TI-84 Plus

In Cabri Jr. for the TI-84 Plus calculator, you can use the Slope tool in the Measure submenu of the Appearance menu to find the slope of a line, segment, or side of a triangle or quadrilateral. [more…]

Construct Points of Intersection in Cabri Jr.

The Cabri Jr. geometry application for the TI-84 Plus calculator can construct the points of intersection of any pair of the following types of objects: lines, segments, circles, and sides of triangles/polygons [more…]

Hide and Delete Objects in Cabri Jr.

You can hide and delete objects in the Cabri Jr. geometry application for the TI-84 Plus graphing calculator. There is a big difference between hiding and deleting an object. If you [more…]

How to Reflect Geometric Objects in Cabri Jr.

Cabri Jr. for the TI-84 Plus calculator allows objects to be reflected in a line or a segment. When a geometric object is reflected in a line, that line acts like a mirror — hence the term “reflection. [more…]

Tile the Plane in GeoMaster on the TI-84 Plus

The Symmetry tool in the TRFM menu on the TI-84 Plus calculator can be used to tessellate (tile) the plane with a geometric figure by rotating that object 180 degrees about a specified point. Unlike the [more…]

Rotate Geometric Objects with the TI-84 Plus

When a geometric object is rotated, it is rotated about a given point through a given angle. To use GeoMaster on the TI-84 Plus graphing calculator to rotate an already constructed geometric object, follow [more…]

Making Geometry Easier

The page you are looking for was recently moved. Don't worry, it's still here; it just has a new address: [more…]

Math iPads and Hunting for Geometric Shapes

Teachers can use iPads in their geometry classrooms to encourage students to apply mathematical concepts to real world examples. By creating presentations on their iPads [more…]

Math Topics to Study for the Miller Analogies Test (MAT)

Math: it really is everywhere, even the MAT. If you don’t like math, don’t worry: The Miller Analogies Test doesn’t require you to do a lot of calculation. But you do have to know a few things about the [more…]


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