National Institute of Open Schooling
Chemical Arithmetics
Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...
Illustrative Mathematics
Growing Bean Plants
Plant growth experiments offer rich, cross-curricular learning opportunities that can really excite and engage young learners. For this series, children work in pairs planting, measuring, and comparing the height of bean plants in order...
Curated OER
Discovering Ohm's Law
Students explore the relationship of resistance, voltage, and current in series and parallel circuits using a computer model of a circuit board. They discover Ohm's Law by constructing series circuits.
Curated OER
Solar Storm Timeline
In this solar storm timeline, students read about a series of events that took place in space beginning with a solar flare. Students gather the information and create a time line of events mentioned. They determine the length of time it...
Curated OER
Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson has learners construct, order, and compare numbers to 9,999. This three-day lesson includes reteaching and extension activities...
Curated OER
Small Angle Calculations
Students work with circles, angles and estimating angles in the night sky. In this circles and angles lesson, students practice measuring a degree using the circumference of a circle and apply the degree to determine a way to use their...
CK-12 Foundation
Ck 12: Analysis: Problem Solving With Series Sums
[Free Registration/Login may be required to access all resource tools.] More on calculating the partial sums of arithmetic series.