This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money with pictures in columns.
This is an interactive assessment and video designed to teach Adding and Subtracting (Numbers up to 20) - Word Problems to first graders.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting terms (numbers to 100).
This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting with parentheses.
This short video and interactive assessment activity is designed to teach fourth graders about addition: completing the addition sentence.
The purpose of this task is to study some patterns in a small addition table. Each pattern identified persists for a larger table and if more time is available for this activity students should be encouraged to explore these patterns in larger tables.
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.
This short video and interactive assessment activity is designed to teach fourth graders about one step metric capacity with addition and subtraction - word problems.
This short video and interactive assessment activity is designed to teach third graders about one step addition and subtraction - word problems.
This short video and interactive assessment activity is designed to teach fifth graders about addition in kilograms.
This short video and interactive assessment activity is designed to teach fourth graders about addition of capacities - word problems.
This short video and interactive assessment activity is designed to teach fifth graders about addition of compound unit capacities - word problems.
This short video and interactive assessment activity is designed to teach third graders about addition of sequential capacities - word problems.
This course features a video review of addition up to the sum of ten for first graders.
This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 10).
This short video and interactive assessment activity is designed to teach second graders an overview of addition.
An interactive applet and associated web page that show the concept of adjacent angles (two angles that share a common leg). The applet shows three line segments with a common endpoint. The user can move the center one and see that the angles on both sides (the adjacent angles) of it are affected. Applet can be enlarged to full screen size for use with a classroom projector. After use in the classroom, students can access it again from any web browser at home or in the library with no login required. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
An interactive applet and associated web page that demonstrate the the concept of adjacent arcs. The user can 3 drag points around a circle that define the endpoints of two adjacent arcs. Web page has the properties of adjacent arcs. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
At the beginning of the course, each student is assigned a unique blob - or a piece of material of a particular shape with specific material properties (density, bulk modulus, composition, viscosity, volatile content, etc) that is residing within the mantle at a specific environment (depth, pressure, temperature). Then as the semester continues as a topic is covered the student must assess (either quantitatively or qualitatively) what observable would be associated with their blob (for example, gravity anomalies, geoid anomalies, surface expressions, seismic tomography, phase transition topography). The student then develops a portfolio of their blob and its observables to then present at the end of the course with an explanation/interpretation for the source of the blob culiminating at building a geo-story around their anomaly.
Some blobs could be amorphous anomalies whereas other could have physical significance (though best not to tell the students ahead of time so they can make their own discovery as to what the blob is or isn't) such as subducted slabs at the CMB (or 660 km), plumes, lithospheric drip, lithospheric root, or a boring typical piece of the mantle.
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