二年級數學（第 17-24 週）
在這 8 週的課程中，我們將學習第三季的數學。我將使用常見的核心數學。
Madison Roberts
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課堂經歷
This is a continuation of 2nd Grade Math (weeks 1-8) and 2nd Grade Math (weeks 9-16). It is recommended that you take weeks 1-16 before taking this class. In this class I will be teaching the third quarter of 2nd grade math. I will be using the common core standards. ***This class will only run if there are at least 2 students. In this class students are encouraged to ask questions and discuss and explain problems. Students will get many opportunities to participate in this class. My goal is to help my students love math. Module 4 Lesson 1: Relate 1 more, 1 less, 10 more, and 10 less to addition and subtraction of 1 and 10. Lesson 2: Add and subtract multiples of 10 including counting on to subtract. Lessons 3–4: Add and subtract multiples of 10 and some ones within 100. Lesson 5: Solve one- and two-step word pr Lesson 6: Use manipulatives to represent the composition of 10 ones as 1 ten with two-digit addends. Lesson 7: Relate addition using manipulatives to a written vertical method. Lesson 8: Use math drawings to represent the composition and relate drawings to a written method. Lessons 9–10: Use math drawings to represent the composition when adding a two-digit to a three-digit addend. Lesson 11: Represent subtraction with and without the decomposition of 1 ten as 10 ones with manipulatives. Lesson 12: Relate manipulative representations to a written method. Lesson 13: Use math drawings to represent subtraction with and without decomposition and relate drawings to a written method. Lessons 14–15: Represent subtraction with and without the decomposition when there is a three-digit minuend. Lesson 16: Solve one- and two-step word problems within 100 using strategies based on place value. Mid-Module Assessment Lesson 17: Use mental strategies to relate compositions of 10 tens as 1 hundred to 10 ones as 1 ten. Lesson 18: Use manipulatives to represent additions with two compositions. Lesson 19: Relate manipulative representations to a written method. Lessons 20–21: Use math drawings to represent additions with up to two compositions and relate drawings to a written method. Lesson 22: Solve additions with up to four addends with totals within 200 with and without two compositions of larger units. Lesson 23: Use number bonds to break apart three-digit minuends and subtract from the hundred. Lesson 24: Use manipulatives to represent subtraction with decompositions of 1 hundred as 10 tens and 1 ten as 10 ones.
學習目標
2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of
operations, and/or the relationship between addition and subtraction.
2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of
operations.
2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on
place value, properties of operations, and/or the relationship between addition and
subtraction; relate the strategy to a written method. Understand that in adding or
subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and
tens, ones and ones; and sometimes it is necessary to compose or decompose tens or
hundreds.
2.NBT.8 Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a
given number 100–900.
2.NBT.9 Explain why addition and subtraction strategies work, using place value and the properties of
operations. (Explanations may be supported by drawings or objects.)
1.OA.1 Use addition and subtraction within 20 to solve word problems involving situations of adding
to, taking from, putting together, taking apart, and comparing, with unknowns in all
positions, e.g., by using objects, drawings, and equations with a symbol for the unknown
number to represent the problem.
1.OA.3 Apply properties of operations as strategies to add and subtract. (Students need not use
formal terms for these properties.) Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also
known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be
added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
1.OA.4 Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by
finding the number that makes 10 when added to 8.
1.NBT.2 Understand that the two digits of a two-digit number represent amounts of tens and ones.
Understand the following as special cases:
a. 10 can be thought of as a bundle of ten ones – called a “ten.”
b. The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six,
seven, eight, or nine ones.
c. The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six,
seven, eight, or nine tens (and 0 ones).
其他詳情
父母的引導和規範
The pace of the class may vary depending on the students. If they are able to get through things quickly we will move on. If they need more time on a skill we will slow down.
供應清單
Students will need a paper and pencil every day.
外部資源
學習者無需使用標準 Outschool 工具以外的任何應用程式或網站。
已加入 March, 2020
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678評論
教師專業知識和證書
密蘇裡州 教學證書 在 小學教育
Hi, my name is Madison. I have a Bachelor's of Science Degree in Elementary Education with an emphasis in Social Science and Math. I have a 9 year old son and a 6 year old daughter. We love to play outside and create art with the things we find in nature. I believe that children should have a passion for learning. So let's make things FUN and INTERESTING!評論
現場團體小班課程
US$280
用於 24 課程每週3次，共 8 週
25 分鐘
有21 位學習者完成此課程
即時視訊會議
年齡: 6-9
3-7 每班學員人數
