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 asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials The students will need grid paper and colored pencils; some color for the ships and (for example) red for explosions on their ships and their...

Students are introduced to the concept of engineering biological organisms and studying their growth to be able to identify periods of fast and slow growth. They learn that bacteria are found everywhere, including on the surfaces of our hands. Student groups study three different conditions under which bacteria are found and compare the growth of the individual bacteria from each source. In addition to monitoring the quantity of bacteria from differ conditions, they record the growth of bacteria over time, which is an excellent tool to study binary fission and the reproduction of unicellular organisms.

A brief refresher on the Cartesian plane includes how points are written in (x, y) format and oriented to the axes, and which directions are positive and negative. Then students learn about what it means for a relation to be a function and how to determine domain and range of a set of data points.

This short video and interactive assessment activity is designed to teach fifth graders about counting the number of perpendicular lines.

This short video and interactive assessment activity is designed to teach fifth graders about determining unknown angles within rectangles and squares.

The attached PDF provides learners with a unique way to find geometric shapes through pictures. In the case, the search is for Trapezoids and Parallelograms. Use, revise, or be inspired by the ideas and create your own to support your learners.

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Students are introduced to graphing on the coordinate plane, in the first quadrant, using (x, y) coordinates.

In this activity, students familiarise themselves with the concept of a map by observing and describing maps, and drawing a map from an aerial photograph. They understand that any location on Earth is described by two numbers, latitude and longitude. The notion of scale and ratio is also explored.

The purpose of this lesson is to teach students about the three dimensional Cartesian coordinate system. It is important for structural engineers to be confident graphing in 3D in order to be able to describe locations in space to fellow engineers.

This KET animation illustrates positive and negative measurement on a straight line and on a flat plane using a point of origin.

This short video and interactive assessment activity is designed to give fifth graders an overview of reflective symmetry.