Countdown

Description

This Flash game develops students' computational fluency and flexibility. It can be played alone or with others. Players choose 6 face-down number cards, and the applet provides a target number. Number cards include one each of 25, 50, 75, and 100, and multiple copies of 1 to 10. The goal is to use the selected numbers and the four basic operations (addition, subtraction, multiplication, division) to arrive at the target. Players can ask the applet to Show a Solution, although others may be possible. Several rule and scoring variations are suggested. A full screen option facilitates use on an interactive board. (This game is not self-checking.)

13 Tags

9 Learning Standards

5. Apply properties of operations as strategies to multiply and divide.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

1. Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

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.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

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.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

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.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

5. Fluently multiply multi-digit whole numbers using the standard algorithm.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

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.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

Make sense of problems and persevere in solving them.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

Reason abstractly and quantitatively.

Alignment of the Resource to this Standard

IOER Community Rating: Not Rated

28 Keywords

Analyze and persevere Order of operations Practice Standards Division Number concepts Algebra Subtraction Upper Elementary Operations Properties of operations Life Science NSDL Number and operations Chemistry Comparison of numbers Whole numbers Social Sciences Multiplication Algebraic manipulation Mathematics Reason quantitatively Elementary School Arithmetic Composition and decomposition of numbers Mental calculation Process skills Education Addition
#Analyzeandpersevere #Orderofoperations #PracticeStandards #Division #Numberconcepts #Algebra #Subtraction #UpperElementary #Operations #Propertiesofoperations #LifeScience #NSDL #Numberandoperations #Chemistry #Comparisonofnumbers #Wholenumbers #SocialSciences #Multiplication #Algebraicmanipulation #Mathematics #Reasonquantitatively #ElementarySchool #Arithmetic #Compositionanddecompositionofnumbers #Mentalcalculation #Processskills #Education #Addition

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