Educator Resources for Primary Krypto
The rules of Krypto are simple: combine five numbers using the four arithmetic operations (+, –, ×, ÷) to arrive at a “target” number. The game can be used as a teaching tool or independent practice activity to allow students to practice mental math, order of operations, and logical thinking while solving a puzzle.
For more teacher resources, visit Illuminations
Numbers and Operations Lesson Plan: The Online Game Krypto
Grades: 3-8
In this lesson plan, which is adaptable for grades 3-8, students use BrainPOP resources to explore the function of addition, subtraction, multiplication, and division in problem solving. Students will select the correct operation and numeral to create an accurate number sentence in interactive game play.
Common Core State Standards Alignment:
3rd Grade
CCSS.Math.Cont.3.OA.B.5 Apply properties of operations as strategies to multiply and divide.
CCSS.Math.Cont.3.OA.C.7 Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 _ 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.
CCSS.Math.Cont.3.NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
4th Grade
CCSS.Math.Cont.4.NBT.B.5 Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
CCSS.Math.Cont.4.NBT.B.6 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
5th Grade
CCSS.Math.Cont.5.NBT.B.6 Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.”
7th Grade
CCSS.Math.Cont.7.NS.A.1d Apply properties of operations as strategies to add and subtract rational numbers.
CCSS.Math.Cont.7.NS.A.2c Apply properties of operations as strategies to multiply and divide rational numbers.
CCSS.Math.Cont.7.NS.A.3 Solve real-world and mathematical problems involving the four operations with rational numbers.
CCSS.Math.Cont.7.EE.B.3 Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies.
