Curated OER
Adding and Subtracting Integers
In this integers instructional activity, learners use the integer number line to solve the problems as they add and subtract positive and negative numbers. They find the answers to 10 questions.
Curated OER
Addition Practice
For this addition practice instructional activity, students solve 60 problems that require them to add 1-digit numbers to 1 or 2-digit numbers with sums to 10.
Curated OER
Adding 3 to a Single Digit
In this adding 3 worksheet, students solve ten problems in which the number three is added to a single digit number. The problems are in horizontal format.
Curated OER
Adding Decimal Fractions Mentally
In this decimal addition worksheet, students solve 14 problems in which decimal numbers to the tenths or hundredths place are added. Problems are in horizontal format and students are encouraged to add mentally.
Curated OER
Adding on Two
In this math worksheet, students practice adding two to a number. Students complete 20 problems written horizontally. Example: 26+2=? Students also practice counting by two with both even and odd number sequences.
EngageNY
Complex Numbers and Transformations
Your learners combine their knowledge of real and imaginary numbers and matrices in an activity containing thirty lessons, two assessments (mid-module and end module), and their corresponding rubrics. Centered on complex numbers and...
Curated OER
Integers - Objects Model
Sixth and seventh graders solve 19 various types of problems related to integers as objects models. They write an integer that corresponds to each letter on a number line and then, arrange the integers from least to greatest. Pupils also...
Creative Chemistry
Determining the Enthalpy Change of a Reaction
In this enthalpy of reactions learning exercise, high schoolers use a known amount of copper (II) sulphate solution and an excess of zinc powder to calculate the reaction's enthalpy change. Students measure the temperature change...
Curated OER
Find the Mystery Lines...If You Can!
In this atomic spectral lines worksheet, students observe a diagram of the spectral lines, their different wavelengths and their intensity. They solve 4 problems which include interpreting the scale, matching up tabulated lines with the...
Curated OER
Maya Math: Addition and Subtraction
Students examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.