This short video and interactive assessment activity is designed to teach second graders about identifying digit values in numbers (numbers to 10,000).
How can an understanding of pH—a logarithmic scale used to identify the acidity or basicity of a water-based solution—be used to design and create a color-changing paint? This activity provides students the opportunity to extract dyes from natural products and test dyes for acids or bases as teams develop a prototype “paint” that is eventually applied to help with a wall redesign at a local children’s hospital. Students learn about how dyes are extracted from organic material and use the engineering design process to test dyes using a variety of indicators to achieve the right color for their prototype. Students iterate on their dyes and use ratios and proportions to calculate the amount of dye needed to successfully complete their painting project.
This short video and interactive assessment activity is designed to give fourth graders an overview of elapsed time.
This short video and interactive assessment activity is designed to teach second graders an overview of elapsed time.
This short video and interactive assessment activity is designed to teach third graders an overview of telling time to 1-minute intervals.
This short video and interactive assessment activity is designed to teach fourth graders about elapsed time in a sequence of events - word problems.
This short video and interactive assessment activity is designed to teach fifth graders about determining duration time - one step with timeline.
This short video and interactive assessment activity is designed to teach fifth graders about determining less than or greater than values of a decimal.
This short video and interactive assessment activity is designed to teach fifth graders about determining the elapsed time given start and end time.
This short video and interactive assessment activity is designed to teach fourth graders about determining the order of decimals in word problems.
This short video and interactive assessment activity is designed to teach fifth graders about determining the product of two decimals without calculation.
This lesson unit is intended to help you assess whether students recognize relationships of direct proportion and how well they solve problems that involve proportional reasoning. In particular, it is intended to help you identify those students who: use inappropriate additive strategies in scaling problems, which have a multiplicative structure; rely on piecemeal and inefficient strategies such as doubling, halving, and decomposition, and have not developed a single multiplier strategy for solving proportionality problems; and see multiplication as making numbers bigger, and division as making numbers smaller.
This short video and interactive assessment activity is designed to teach fourth graders about ending time in 5-minute intervals - word problems.
This short video and interactive assessment activity is designed to teach third graders about solving for beginning time in 5-minute intervals - word problems.
This short video and interactive assessment activity is designed to teach second graders about determining time changes in 5-minute intervals.
This short video and interactive assessment activity is designed to teach third graders an overview of subtraction (numbers to 1,000).
This short video and interactive assessment activity is designed to give fourth graders an overview of subtraction (numbers to 1,000).
This short video and interactive assessment activity is designed to teach second graders an overview of subtraction (numbers to 1,000).
This task helps students understand the relationship between digit placement and the value of a number.
This task requires students to think of dimes and pennies as fractions of dollars.