Deployment Team/Resources/GuideXOGabon: Difference between revisions
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===Calculate Activity=== | |||
====Activity Summary==== | |||
The activity calculation is a calculator. The student can calculate using numbers and | |||
signs. In calculating it recognizes numbers, puts them in a distinctive way before and / or | |||
According to the mathematical signs to perform different types as | |||
add, subtract, multiply and divide. | |||
====Affordances of the activity==== | |||
* The student can add, subtract, multiply or divide numbers or | |||
numbers. | |||
* Students can make all kinds of divisions (between numbers of | |||
fractions). | |||
* The student can add fractions with the same denominator. | |||
* Students can multiply decimal numbers by 10, 100, 1000. | |||
* Students can calculate the percentages. | |||
* Students can calculate problems in situations involving addition, | |||
subtraction, multiplication or division. | |||
* Students can share their findings with a classmate of the class through the XO. | |||
* The teacher will save time and be able to quickly appease conflict cognitive that may generate some results. | |||
====Degree of centrality of the activity==== | |||
Calculate activity is very central to all mathematical tasks | |||
students from the class of the preparatory first year of primary school. Arrived in fourth | |||
grade, students will be able to ask operations to add, | |||
subtract, multiply and divide, to perform various calculations, or to solve | |||
problem situations in mathematics. | |||
From the fourth year, the event will calculate the teacher to see if students | |||
know how to use mathematical tools and their correct answers. | |||
====Application pédagogique 1==== | |||
''Level (s)'': 4th grade of primary | |||
''Knowledge'': Addition of numbers from 0 to 10000 | |||
''Savoirfaire'': | |||
Calculate in situations problems, are numbers from 0 to | |||
9999. | |||
''History'': | |||
Suggested Activities: Reading and analysis of statements of problems involving | |||
additions. (eg Add the following numbers: 11 and 43, 13 and 67, 45 and 87). | |||
After clicking the icon appearing Calculate the prospect of Home XO, | |||
the student recognizes the numbers and select using the mouse or keyboard. It raises | |||
its operation on the computer screen and tap the enter key to get display | |||
result. | |||
Collaboration dyad: | |||
After making its calculation, the dyad share his results with another dyad by | |||
Discuss the activity. Example: | |||
Dyad 1, we find 11 + 43 = 54 and you? | |||
Dyad 2: we find 43 + 11 = 54. | |||
Dyad 1: It's funny we have the same result, but we have not put the operation | |||
in the same order. | |||
Dyad 1: Yes, it's just because in addition, order numbers and figures is | |||
not significant, the result is always the same because the addition is commutative. | |||
Through this exercise, the teacher can help students understand the concept of | |||
commutativity of addition for example. | |||
====Application pédagogique 2==== | |||
''Level (s)'': 4th grade of primary | |||
''Knowledge'': The soustration numbers from 0 to 10000; The multiplication by 2, 3, 4 and 9 .... | |||
numbers from 0 to 10000. | |||
''Savoirfaire'': | |||
Calculate in problem situations, differences and products | |||
numbers ranging from 0 to 9999. | |||
''History'': | |||
Invention and analysis by students in problem situations involving | |||
subtract and multiply by 2.3 ... 9 numbers from 0 to 10000 Example: Mom gives | |||
Makaya to 100 francs for pocket money this week, he bought candy for | |||
75 francs. How it is there? Eg a box of eggs contains 6 eggs. How many has he | |||
7 eggs in cartons of 8 boxes each. | |||
Students organized dyad perform subtraction through the calculator | |||
XO by putting the correct numbers and numbers with the mathematical sign. Then, in | |||
tapping the Enter key, they will get the result of their operation. | |||
Collaboration dyad: | |||
Dyad 1: To solve the problem, we pose the following subtraction: 100 - 75 = | |||
25. And you? | |||
Dyad 2: To solve the problem, we found the operation: 75 - 100 = -25; We | |||
do not understand why the calculator we place the sign (-) before the number 7, then | |||
that we are in the subtraction of integers. | |||
Dyad 1: Because you put your evil operation. In the subtraction | |||
natural, most are still before the minus sign (-), since the subtraction | |||
is not commutative. | |||
Dyad collaboration allows students to share their results. Replies | |||
generate different cognitive and sociocognitive conflict, allowing the discussion with | |||
Close to formulate the issues of personalized learning to better | |||
ownership of knowledge. The use of the calculator through the XO, can check its | |||
own results. | |||
====Guide to use the Calculate==== | |||
To access, place the cursor Calculate the icon (represented by the pictogram of a | |||
calculator). | |||
<image Home view> | |||
Click Start to use the calculator. To perform operations that are | |||
in connection with the problem, use the buttons on the calculator on the screen or | |||
those keys to make the mathematical operation. | |||
<image Calculator> | |||
The Enter key gives the answer once the transaction is asked. Equations and their | |||
history will appear in the white square on the left hand side of the screen. | |||
===Activity Ruler=== | ===Activity Ruler=== | ||
====Activity Summary==== | ====Activity Summary==== |