CK-12 Foundation
Ck 12: Elem Math: Finding the Amount of Water
[Free Registration/Login may be required to access all resource tools.] The video describes how to find the sum of the capacity of water using the pictures provided. The video describes how to use the pictures to determine how many cups...
Utah Education Network
Uen: Properties
This multi-segment lesson plan walks students through understanding and applying the properties of multiplication and addition. It provides a song for learning the properties as well as ideas for assessment.
Texas Instruments
Texas Instruments: Constants
Students use the calculator to determine the amount of money that will accumulate in a savings account, if every month a certain sum is deposited in the account. They explore the use of the constant function key on the calculator to make...
Goodwill
Gcf Global: Excel Formulas: Functions
A function is a predefined formula that performs calculations using specific values in a particular order. All spreadsheet programs include common functions that can be used for quickly finding the sum, average, count, maximum value, and...
Texas Instruments
Texas Instruments: 100 or Bust
In this activity, students explore the operations of addition and subtraction. They use estimation, a place value chart, and a calculator to place seven randomly generated numbers in the ones and tens position in a place-value chart to...
Math Is Fun
Math Is Fun: Interior Angles of Polygons
Learn what an interior angle of a polygon is and how you can calculate their value in triangles, quadrilaterals, and pentagons. Includes a chart that overviews the "general rule" for determining the sum of internal angles in any polygon...
CK-12 Foundation
Ck 12: Geometry: Interior Angles in Convex Polygons
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate the sum of the interior angles of a polygon and the measure of one interior angle of a regular polygon.
Khan Academy
Khan Academy: Find Angles in Triangles
Find missing angle measures using the properties of triangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Walter Fendt
Walter Fendt: Resolution of a Force Into Components
A short interactive activity which allows you to calculate the sum of two component vectors.
Free Math Help
Free Math Help: Exterior Angle of a Triangle
This tutorial discusses exterior angles of a triangle. Example problems with explanations are included.