Republic of the Philippines
The Courseware Project

Department of Science and Technology

Category: Grade 1
Subtracting 3 Digit Numbers Without Regrouping

This module enumerates the steps in subtracting three-digit numbers without regrouping. The concept is developed comprehensively in the context of a story. The original number of seeds is initially given and later on, the concept is applied to the problems on seeds which are given at the start of the lesson.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 918.84 KB
Downloads 274
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Subtracting 1 to 2 Digit Numbers With or Without Regrouping

This module discusses subtracting 1 to 2-digit numbers with or without regrouping. The solutions are shown using mathematical sentences for subtraction with regrouping and table of place value for subtraction without regrouping. Step-by-step guidelines are also included in illustrating the idea and techniques.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.03 MB
Downloads 128
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Regrouping Ones into Tens and Tens into Hundred

This module shows how to regroup sets of ones into tens and sets of tens into hundreds using objects. It utilizes several objects in the discussion of the concept. Said objects are those that pupils usually encounter in their daily life.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.63 MB
Downloads 377
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Adding 1 Digit to 2 Digit Numbers With Sum Up to 99 With or Without Regrouping

This module discusses adding 1 to 2-digit numbers with sum through 99 with or without regrouping. The topic is conceptualized using a story of a group of pupils on an educational trip. The number of boys and girls are used as the values to be added with or without regrouping.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.22 MB
Downloads 206
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The Days in the Week

This module includes a topic on telling the number of days in a week using a calendar. A dialogue between Ling-Ling and Linda talking about the days in a week introduces the presentation. A sample calendar is used as a reference to answer the questions on the exercises.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 2.29 MB
Downloads 102
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Separating a Group of Objects into Halves

This module explains a lesson, which discusses separation of objects into halves/fourths. This is illustrated by a dialogue, wherein the father divides the chocolates equally between his two sons. Several objects are also used as illustrations in the development of the concept.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.31 MB
Downloads 163
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Recognizing One-Half of a Whole

This module involves the recognition of one-half of a whole. It shows several situations where 1/2 is illustrated. Likewise, problems are presented to concretize the concept.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.16 MB
Downloads 174
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Recognizing One-Fourth of a Whole

This module tackles recognizing one-fourth of a whole. The discussion evolves on dividing a pizza into four equal parts and distributing each part to four persons. The exercises at the end aims to enhance the concept developed.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.83 MB
Downloads 109
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Place Value of 3-Digit Numbers

This module focuses on discussing place value of three-digit numbers. The topic is developed with a story, catching mangoes using baskets. The concept extends from counting the mangoes grouped in a basket to getting the amount of the mangoes picked, which is presented at the latter part of the lesson.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 1.77 MB
Downloads 83
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Associating and Identifying Numbers with Sets having 101 to 500 Objects

This module presents counting objects which are greater than 100 but less than 500. The lesson originates from counting books on a shelf and presents other situations which develop the same competency.

ISBN 978-971-8600-31-3, July 2006



Created 2013-04-25
Size 893.99 KB
Downloads 308
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