![]() ![]() SwitchDemoFallThrough shows statements in a switch block that fall through. The break statements are necessary because without them, statements in switch blocks fall through: All statements after the matching case label are executed in sequence, regardless of the expression of subsequent case labels, until a break statement is encountered. Control flow continues with the first statement following the switch block. Each break statement terminates the enclosing switch statement. An if-then-else statement can test expressions based on ranges of values or conditions, whereas a switch statement tests expressions based only on a single integer, enumerated value, or String object.Īnother point of interest is the break statement. You could also display the name of the month with if-then-else statements:ĭeciding whether to use if-then-else statements or a switch statement is based on readability and the expression that the statement is testing. The worksheet is meant for first graders. They’ll also need to write the number of blocks afterward. The switch statement evaluates its expression, then executes all statements that follow the matching case label. In the following exercise, students have to create groups of 10 by drawing loops around the set of 10 blocks and then redraw the blocks in sets of ten. A statement in the switch block can be labeled with one or more case or default labels. The body of a switch statement is known as a switch block. Expansion: Use the activities in the links listed under Related Resources for additional practice and extension with larger numbers.In this case, August is printed to standard output.Students may need to use all cubes or exchange 10 cubes for a long at first if they have difficulty starting to count at 10. Students use base-ten blocks to represent the number. Small Group: Use base-ten blocks and number cards ( M-K-2-1_Number Cards 11-20.docx).Routine:Students draw a number card ( M-K-2-1_Number Cards 11-20.docx) and use base-ten blocks to represent the number drawn.Move around the room observing and asking clarifying questions to evaluate which students understand place value and which need additional exploration. Give each student a copy of the Place-Value Worksheet ( M-K-2-2_Place-Value Worksheet and KEY.docx). “Read the number on the board.” (Seventeen) “In 17, which digit is in the ones place? (7) “The tens place?” ( 1) “Use your number cards to show the number with a 3 in the ones place, and a 1 in the tens place.” (13) pre-k grade k grade 1 grade 2 grade 3 grade 4 grade 5 grade 6+ Base Ten Blocks. “Show the number 12 with base-ten blocks.” (1 long, 2 cubes) ABCya Base Ten Blocks virtual manipulatives helps students learn mathematical concepts including addition, subtraction, number sense, place value and counting. Write numbers in the range of 11–20 on the board and ask the students to show the number by placing base-ten blocks on their place-value mats.Ĭontinue with a series of procedures using base-ten blocks, number cards, written numbers, and spoken numbers. This will allow students to sort the blocks mentally into ones and ten. After a few examples, display the base-ten blocks at random without the mat. Repeat with other numbers in the range of 11–20. “ Show the number 15 by putting your cards on your place-value mat.” ( Students show 15 by putting the card for 1 in the tens place and the card for 5 in the ones place.) “How many tens?” (1) “How many ones?” (5) “Read the number.” (Fifteen) Display 1 long and 5 cubes on a place-value mat. Give each child a set of number cards (11–20) and a place-value mat ( M-K-2-2_Place-Value Mat.docx). Base-ten blocks can be used to help understand numbers and solve problems.” “Our system for writing numbers is called the base-ten system because it is based on grouping things by tens. Why do you think a long represents ten?” (It is made up of ten cubes.) “These are called base-ten blocks.” Hold up a cube. Have students count from 10 several times, having them stop at 16, 20, and 17. For example, “Count forward starting at 10 until I tell you to stop.” Stop students at 18. In the following example x is an integer. Each piece is ten times the size of the previous piece. All JavaScript config examples in our docs use the CommonJS format. Integers can be specified in: decimal (base 10), hexadecimal (base 16), octal (base 8), or binary (base 2) notation. Base ten blocks are pre-bundled proportionally sized materials that illustrate the place value relationship that 10 ones make 1 ten and 1 ten 10 ones. Begin the lesson by doing choral counting from 10 to prepare students for work with base-ten blocks. This guide is for Cypress 10+ and the new JavaScript configuration file format. ![]()
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