LESSON PLAN OF ADDITION AND SUBTRACT UNITS OF TIME WITH CARRYING/BORROWING
LESSON PLANNING OF ADDITION AND SUBTRACT UNITS OF TIME WITH CARRYING/BORROWING Subject Mathematics Grad 5 th Students` Learning Out coming Add and subtract units of time with carrying/borrowing. Information for Teachers For addition of time: The same units are added i.e. o Hours can be added to hours; 3:hours + 9 hours o Minutes can be added to minutes; e.g.: 25 minutes +m 32 minutes. o Second can be added to seconds; : 33 seconds + 21 seconds + If two different units of time are given then one will be converted into the other before adding, For example; o 6 hours + 72 minutes o 6 x 60 = 360 minutes o 360 minutes + 72 minutes = 432 minutes o Again convert it in hours and minutes by divide with 60 x 432 ÷ 60 = hours 20 minutes. For Subtraction of time: The same traditional method of carrying will be used, but carrying will be done from hours or minutes as 60. For example; (30 + 60 = 90) carry 1 hour i.e. 60 minutes 4 hours