Presentation on theme: "Textual math problem Textual math problem In autumn 2 red and 3 yellow leaves fell down from the tree. How many leaves fell from the tree? In autumn 2."— Presentation transcript:
Textual math problem Textual math problem In autumn 2 red and 3 yellow leaves fell down from the tree. How many leaves fell from the tree? In autumn 2 red and 3 yellow leaves fell down from the tree. How many leaves fell from the tree? What is a textual math problem?
This is the CONDITION of textual math problem. How many fruit are there in the basket? This is the QUESTION of Math problem. How many fruit are there in the basket? This is the QUESTION of Math problem. There are 2 pears and 3 apples in the basket. What I know is in the condition of the textual math problem. In the question is told what I have to find.
There are 2 flowers and 3 trees on the meadow. How many flowers and trees are there on the meadow? There are 2 flowers and 3 trees on the meadow. How many flowers and trees are there on the meadow? This is the SOLUTION of textual math problem. ANSWER: 5 flowers and trees
YOU KNOW! TEXTUAL MATH PROBLEM ANSWER SOLUTION QUESTION CONDITION
1. It calls word problem, because it is written by a text. 2. A textual math problem has a condition and a question. 3. That I know is in the condition. What I have to find is in the question. 4. I answer to the question of the word problem with the solution. 5. I have to write the answer of the math problem.
Solution: …………… Answer: 5 birds 4 birds alight on the tree, one bird – on the other tree. How many birds alight on the two trees? = 5 Mark with a red colour a condition and with a green colour - a question of the math problem.
In the basket there are 10 apples and 5 pears. How many fruit are there? Numerical data are in the condition of the word problem. They are written by numbers. Numerical data help us to write the solution. Numerical data in textual math problem
A squirrel collected 10 acorns and four walnuts. How many fruit did a squirrel collect? and 4 Numerical data in a word math problem can be written by words and numbers. Оh, where are they?
Colour a condition of M M M Math problem - blue, a question – red and numerical data – yellow. Some children planted 12 trees and eight bushes. How many trees and bushes did they plant? Exsellent
Solution: 6 – 4 = 2 (trees > mushrooms) ( mushrooms < trees ) To understand how much one number is LESS or MORE than other, we have to take out smaller number from the bigger. What do the words „more“ and „less“ mean in the textual math problem?
A child collected 12 chestnuts and 8 walnuts. How many the walnuts are less than the chestnuts? A child collected 12 chestnuts and 8 walnuts. How many the chestnuts are more than the walnuts? Word problems have the same conditions Word problems have different questions The solutions are different yes no
Mimi ate four cherries. Her brother ate 2 cherries less than Mimi. How many cherries did Mimi`s brother eat? Mimi ate four cherries. Her brother ate 2 cherries more. How many cherries did he eat? Word problems have one and same questions and different conditions Word problems have different questionsWord problems have different solutions yes no
ADDITION SUBTRACT „LESS“ „MORE “
Ana collected cones. She find 9 cones of spruce tree, and 2 more cones of pine. How many pine cones did Ana collect? = = = 7 I know what is the solution! I am a winner!
Word problems on the picture
There were 8 birds on the tree. Five stayed on the tree. How many came down on the land? There were 8 birds on the tree, three - came down under the tree. How many birds stayed on the tree? = 5 5 birds alighted on the tree, and 3 - on the land under the tree. How many are the birds in all? = 8 8 – 5 = 3
Bravo! You know how to solve Math word problems for the gifts of the nature!
A Presentation – lesson Is developed by ideas for math word problems, connected to the title of the project „More trees? Yes, please!“ of Math book for FIRST GRADE. Authors: Yuliana Garcheva, Angelina Manova, Reni Rangelova, Rumiana Petrova. The lesson is realized with students from 1 st grade, SOU „Ivan Vazov“, Pleven, Bulgaria, who are taken a part in mathematical competitions and who have won awards and prizes.