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Reminders

Reminders. Talk in English at all times inside the class. Exam grades and presentation grades will be discussed last 15 minutes of the second period. Subtractions will be reviewed. Starter. Solve the following exercises. Converting Between Numbering Systems. Lesson Objectives.

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Reminders

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  1. Reminders • Talk in English at all times inside the class. • Exam grades and presentation grades will be discussed last 15 minutes of the second period. • Subtractions will be reviewed

  2. Starter • Solve the following exercises

  3. Converting Between Numbering Systems

  4. Lesson Objectives • All of you should be able to convert binary numbers into decimal numbers • Most of you should be able to convert decimal numbers into binary numbers • Some of you should be able to convert any base numbers to any other base numbers

  5. Basic subtractions • Individually, write the basic one digit subtractions you can think of. (2 min)

  6. The fourth one

  7. Solve the following exercises

  8. Group Work • Each group will receive 3 exercises and will need to solve them within 5 minutes. • All teams will have a captian, he is in charge of checking that all answers are correct and that everyone has been ale to perform subtractions.

  9. Group Work • Sebastian, Gael, Alberto • Itzel, Ana Laura, Ivan • Mariana Guerrero, Gabriel, Janna • Nat de Lara, Mayra, Regina • Miguel Angel, Erika, Mariana Ríos • Lorena, Jorge, Nuria, Fernando

  10. 3 exercises

  11. 104 • How do we say this?

  12. How decimal system works? • What is the name of the following number: 2956 • - • Two thousand • Nine hundred • Fifty • Six

  13. Writing the number differently • 2956 • Individually write the number using addition and multiplications. Multiply numbers time 1000, 100, 10 or 1. • Now write the number again but use 10*10*10, 10*10, 10 , 1 • And now write it again using the following 103, 102 , 101 , 100

  14. How decimal system works?

  15. How binary system works?

  16. Example 1 • Convert 112 to decimal system.

  17. Example 2 • Convert 1101012 to decimal system.

  18. Class Exercise • Convert 11012 to decimal system.

  19. Class Exercise • Convert 10101012 to decimal system.

  20. Solve • Individually solve the following exercises. (8 minutes) • 11112 • 101010102 • 12 • 1000012

  21. Answers • Check your answers. For each one, put one hand up if you have got it correctly. • 11112  1510 • 101010102  17010 • 12  110 • 1000012  3310

  22. Can you generalize knowledge • 24315 • 123678 • 101013

  23. Group Work • Each group will need to solve the given 3 exercises. • Sebastian, Gael, Alberto • Itzel, Ana Laura, Ivan • Mariana Guerrero, Gabriel, Janna • Nat de Lara, Mayra, Regina • Miguel Angel, Erika, Mariana Ríos • Lorena, Jorge, Nuria, Fernando

  24. Student Led (Ind)

  25. Student Led (Group)

  26. Plenary

  27. What have you learned?

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