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T. Hester rev. 2014 MECR/2014 Tens Boards (Seguin Boards) Materials: A box containing two wooden frames with five sections each. Each section except the last is labeled, 10 - 90. Each section has slots that numeral cards slide in over the zeros to form new numerals 11-99. Unit numeral cards 1-9. A box of 9 ten bars, a box of 9 unit beads, and 9 unit cups. Rug. Preparation: Teens Boards. Age: 4 years. Direct Aims: To understand how numbers progress 19-20, 29-30, etc. To learn to sequence count from 1-99. To develop the understanding that the numerals 1 to 9 added to larger numerals can make a variety of numerals. To reinforce the relationship between units and tens. To develop the understanding that you may always add one more. Indirect Aims: To prepare for linear counting and further operations of mathematics. To develop order, concentration, coordination, and independence. Presentation: Note: The next time the child does this work start with a bigger number such as 40. This is a nice work to present to a small group. Vocabulary: Tens Board. All the numerals between 1 and 99. Points of Interest: Sliding the numerals in place. Counting out the correct number of ten bars and unit beads to correspond to each numeral. Creating new numbers each time you do the work. Reading the numerals you’ve created. Learning what comes next after the tenth unit is added. Discovering that 10 units are the same as a 10 bar. Adding one more unit. Control of Error: The correct number of unit beads, ten bars, and corresponding numeral cards are provided. The order of the numerals on the boards. Variations: 1. Use only the first board. Just go to 50. 2. Have the child read the numerals out of order. 3. Review what comes after 29, 39, 49, etc. Extensions: 1. Use a mat to help organize the work. 2. Write the numerals on prepared paper. 3. Work cards that the child has to fill in the blank space with the correct numeral. 24___26. Answer cards are separate. 4. Memory Game. Extension I: Introduction of Tens, Quantity and Symbol: This presentation uses a box of forty five ten bars and the boards. 1. Invite the child to work with the Tens Boards. Have the child get out the materials and set them up as in the first presentation. 2. Open the box of ten bars and put the lid under the box. Take one 10 bar out of the box and say, “This is ten.” 3. Point to the numeral ten and say, “This says ten.” 4. Put 2 tens out to the left of the numeral 20 and say, “Here we have 2 tens. 2 tens are 20.” Grasping the 2 tens say, “This is twenty.” Pointing to the numeral 20 say, “This says 20.” 5. Repeat this procedure with 30-90. 6. Review the numbers 10-90 in order saying, “This is ten, this says ten, this is twenty, this says twenty, etc.” as you indicate each quantity and numeral. 7. Give a Three Period Lesson with ten’s numerals the child doesn’t know. 8. Show the child how to return the materials to the shelf. Extension (Building Numbers): This presentation uses 45 ten bars and 45 unit beads. 1. Invite the child to work with the Tens Boards. Have the child lay out the materials as in the first presentation. 2. Take 1 ten bar out of the box and say, “This is ten.” Indicate the numeral ten and say, “This says ten.” 3. Get a cup and place it to the right of the ten bar. Ask the child how many units they would like. (For this first presentation have them choose any number except 1.) Count the units into the cup. 4. Get the corresponding numeral and slide it in the slot over the zero. Say, “This is ie.15, this says 15. 5. Continue in same manner building new numbers and numerals. 6. Have the child read their numerals to you. 7. Have the child return the materials to the shelf. Notes: