Place Your Values Current California Math Standards Place Your Values (Whole Numbers) Grade Three Number Sense 1.0 Students understand the place value of whole numbers: 1.1 Count, read, and write whole numbers to 10,000. 1.2 Compare and order whole numbers to 10,000. 1.3 Identify the place value for each digit in numbers to 10,000. 2.0 Students calculate and solve problems involving addition, subtraction, multiplication, and division: 2.1 Find the sum or difference of two whole numbers between 0 and 10,000. Place Your Values Standards 1 Current California Math Standards Place Your Values (Decimals) Grade Four Number Sense 1.0 Students understand the place value of whole numbers and decimals to two decimal places and how whole numbers and decimals relate to simple fractions. Students use the concepts of negative numbers: 1.1 Read and write whole numbers in the millions. 1.2 Order and compare whole numbers and decimals to two decimal places. 2.0 Students extend their use and understanding of whole numbers to the addition and subtraction of simple decimals: 2.1 Estimate and compute the sum or difference of whole numbers and positive decimals to two places. 3.0 Students solve problems involving addition, subtraction, multiplication, and division of whole numbers and understand the relationships among the operations: 3.1 Demonstrate an understanding of, and the ability to use, standard algorithms for the addition and subtraction of multi digit numbers. Grade Five Number Sense 2.0 Students perform calculations and solve problems involving addition, subtraction, and simple multiplication and division of fractions and decimals: 2.1 Add, subtract, multiply, and divide with decimals; add with negative integers; subtract positive integers from negative integers; and verify the reasonableness of the results. Grade Six Number Sense 1.0 Students compare and order positive and negative fractions, decimals, and mixed numbers. Students solve problems involving fractions, ratios, proportions, and percentages: 1.1 Compare and order positive and negative fractions, decimals, and mixed numbers and place them on a number line. Place Your Values Standards 2 Current California Math Standards Place Your Values (Multiplication) Grade Three Number Sense 1.0 Students understand the place value of whole numbers: 1.1 Count, read, and write whole numbers to 10,000. 1.2 Compare and order whole numbers to 10,000. 1.3 Identify the place value for each digit in numbers to 10,000. 2.0 Students calculate and solve problems involving addition, subtraction, multiplication, and division: 2.1 Find the sum or difference of two whole numbers between 0 and 10,000. 2.2 Memorize to automaticity the multiplication table for numbers between 1 and 10. 2.4 Solve simple problems involving multiplication of multidigit numbers by one-digit numbers (3,671 x 3 = __). 2.8 Solve problems that require two or more of the skills mentioned above. Grade Four Number Sense 3.0 Students solve problems involving addition, subtraction, multiplication, and division of whole numbers and understand the relationships among the operations: 3.1 Demonstrate an understanding of, and the ability to use, standard algorithms for the addition and subtraction of multi digit numbers. 3.2 Demonstrate an understanding of, and the ability to use, standard algorithms for multiplying a multi digit number by a two-digit number and for dividing a multi digit number by a one-digit number; use relationships between them to simplify computations and to check results. 3.3 Solve problems involving multiplication of multi digit numbers by two-digit numbers. Place Your Values Standards 3 Place Your Values Materials: One deck of cards for every two players with all the tens, face cards and jokers removed (you will only use ace through nine) One large deck of playing cards for modeling the game on the white board (can be purchased in the Target game section for $5.00) One recording sheet for every student (see pages 7-11) One Place Your Values template for every student (see pages 12-17) Note: To save money you can make sets of digit cards using the master on page 18. You would need to make 4 sets for each pair of students if you wanted to have the same level of variety offered in a standard deck of playing cards. You would also want to model the game using digit cards. Just enlarge the master on page 18 to 160% and run on construction paper. Remember to run multiple copies to get a good variety of digits. Mathematical Practice Standards: 3. Construct viable arguments and critique the reasoning of others. 7. Look for and make use of structure. Current California Content Standards: See pages 1-3 labeled “Place Your Values Standards” Background Information: This activity helps students to see the structure present in our place value system (a four placed in the hundreds column is ten times greater than a four placed in the tens column; a four placed on the left side of the decimal is very different than a four placed on the right side of the decimal). Students also have an opportunity to add and subtract numbers in a context that has meaning to them. Having students make an observation after each turn is an important part of the learning, so be sure to model this well during your demonstration. Introduction (5 minutes): Inform students that they are going to play a game called “Place Your Values”. In each round the players try to create a number that is larger than the number their opponent creates. The difference between the two numbers created is awarded as points to the person creating the largest number. The object of the game is to have the most points at the end of four rounds. Tell them you are going to play a game against one student so everyone can better understand the game. Demonstration of how to play Place Your Values (15 minutes): Put the “Place Your Values” sheet under the document camera or overhead. Draw two templates on the board that match the game you have chosen to play. The template consists of boxes a little larger than the size of the playing card and the value of each column labeled (see figure below). Teacher Hundreds Place Your Value Lesson Plan Tens Student Ones Hundreds Tens Ones 4 The teacher and student take turns turning over a card and placing it in one of the columns on the template. Once the player places their card, they make an observation. You will model a complete game by competing against one student. An example of a classroom demonstration is depicted below and is based on the cards in the figure below. Teacher Student Hundred s Tens Ones Hundred s Tens Ones Draw One: The teacher placed the two in the ones column and said, “The number two is pretty low so I want to put it in the ones column because I believe my next two cards will be higher than a two. The columns to the left have a higher place value so I want to save my bigger numbers for those columns.” Once the teacher completed her observation she said “done” and then the student flipped over a card. The student turned over a one and placed it in the ones column. The student observed that “the one is the lowest card so I want to put it in the column with the lowest place value. Done.” Draw Two: The teacher placed the eight and said, “There is only one number higher than an eight, so I think I will place the 8 in the hundreds column. Putting an eight in that column gives me 8 hundreds instead of just 8 tens. Done.” The student drew a seven and said, “I am going to put the 7 in the tens column because if I put it in the ones column I cannot get a number higher than you. Done.” Draw Three: The teacher placed the two and said, “I made the number 822. The only way you can win is if you turn over an eight or a nine. I think I am going to win Round 1. Done.” The student turned over a six and said, “You created the larger number. I think you beat me by about 100 points. Done.” Notice how the observations progress with each succeeding card. On the first draw the players are looking only at the value of the card drawn. On the second draw the players are considering the opponent’s game board, the value of the card, and the likelihood of what they will draw next since there is only one remaining draw. The third draw focuses on the outcome with the first player predicting whether they have a good chance of winning and the second player estimating by how much they won or lost. These observations are an important part of the lesson as they allow you to do formative assessments while circulating the room. When students justify their placement choices you gain a deep understanding of their number sense. The cards are then placed so the larger number is on top of the smaller number. The math problem is recorded on the Place Your Values sheet, and the difference is calculated. The answers are compared to make sure both answers are the same. The player who made the largest number earns that number of points on their score sheet. Place Your Value Lesson Plan 5 Play continues in this manner for three more rounds. Then the points are calculated for each player to determine the overall winner. The differences are calculated to determine by how many points the winner defeated their opponent. It is important to model how to calculate my points, my opponent’s points and total difference at the bottom of the sheet so students understand how to complete this section. Students Play the Game (15 minutes): Tell students they are going to do the following: 1) 2) 3) 4) Turn over a card to determine who will go first (high card goes first). Take turns placing a card on their place values game board. Make an observation at the end of each turn. Record the math problems on their Place Your Values recording sheet. Circulate: During the game look for situations and discussions that would be examples to share during Closure. For example, a game where a student lost in 3 of the 4 rounds but still managed to be the overall winner, or a student who has an interesting way of justifying their card placements. Look for scenarios that will allow you to focus the closure on the standards you are teaching while engaging the students in a meaningful dialogue because you are using the games they just played. Closure/Eliciting Student Thinking (10 minutes): Ask students to: share something that surprised them about the game (for example someone may have lost in 3 of the 4 rounds but still been the overall winner) tell you why someone might have written the number 132 instead of 321 (the one was probably the last number drawn but they thought they would get a number higher than 2 or 3 on their last draw). tell you why someone might have written 793 instead of 973 (the 9 was probably the last number drawn and they did not think they would get a number higher than 7 on their last draw) share a strategy they think worked well and that they would use again the next time they play this game (have them justify why they chose think this is a winning strategy) Extension: Extend the game to include numbers of larger magnitudes (five and six digit numbers). Have students compete to create the lowest number possible. Lowest overall score wins the game. Place Your Value Lesson Plan 6 Place Your Values Three-Digit Numbers Round Round One Round Two Difference Your Name Opponent’s Name Points Points - - Round Three - Round Four - My Total Points Place Your Values Student Recording Sheet My Opponent’s Points Total Difference 7 Place Your Values Four-Digit Numbers Round Difference Round One - , Round Two - , - , - , Round Three Round Four Your Name Opponent’s Name Points Points , , , , My Total Points Place Your Values Student Recording Sheet My Opponent’s Points Total Difference 8 Place Your Values Decimals Game One Round Difference Round One - Round Two - Round Three - Round Four - My Total Points Place Your Values Student Recording Sheet Your Name Opponent’s Name Points Points My Opponent’s Points Total Difference 9 Place Your Values Decimals Game Two Round Difference Round One - Round Two - Round Three - Round Four - My Total Points Place Your Values Student Recording Sheet My Opponent’s Points Your Name Opponent’s Name Points Points Total Difference 10 Place Your Values Multiplication Round Multiplication Problem Round One Difference Your Name Opponent’s Name Points Points - Round Two - Round Three - Round Four My Total Points My Opponent’s Points Place Your Values Student Recording Sheet Total Difference 11 HUNDREDS Place Your Values Student Template for Placing Cards TENS ONES 12 HUNDREDS THOUSANDS TENS ONES , Place Your Values Student Template for Placing Cards 13 ONES TENTHS HUNDREDTHS . Place Your Values Student Template for Placing Cards 14 TENS ONES TENTHS HUNDREDTHS . Place Your Values Student Template for Placing Cards 15 TENS ONES x Place Your Values Student Template for Placing Cards 16 TENS ONES x Place Your Values Student Template for Placing Cards 17 1 2 3 4 5 6 7 8 9 Place Your Values Digit Cards 18