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Doubtbox is the latest innovative product from the founders of eTutor, which is used by half a million students across the globe. This Interactive Digital Content Repository has 8000 animated topics and one lakh questions with answers for Classes 1-12 . Doubtbox pen drive, an excellent tuition master at home, facilitating self learning by students, available for Classes 1-12, based on CBSE syllabus, with effective blending of ICSE and State Boards syllabus. Once they are set up in the home computer/lap top, students can study any lesson according to their convenience and do home work easily, watching the lessons enriched with multimedia. All the topics are explained with quality animations, graphics, pictures and diagrams along with audio explanations. Students will enjoy lessons as if seeing an animated, topic-based film.
Doubtbox Features:
Latest syllabus
Animated video lessons
Exciting visuals
Audio explanations
Multiple choice questions
Assessments
Time bound test
Model test papers
Previous years question papers
NCERT solutions
System Requirements:
Processor – Minimum:1 GHZ, RAM – Minimum:2 GB
Disk Space – Minimum 10 GB Free space
Screen resolution – 1280 x 720 or above
Operating System – Windows 7 or above
Topics Covered in doubtbox Educational Pen Drive
ENVIRONMENTAL STUDIES
Chapter 1. Super Senses
Introduction, Sense Organs, The Eyes, The Ears, The Nose, The Tongue, The Skin, Tigers
Chapter 2. A Snake Charmer’s Story
Snakes, Poisonous snakes, First aid for snake bite
Chapter 3. From Tasting to Digesting
Stomach, Good food, good health, Body building food, Energy giving food, Food and hygiene, Digestive system
Chapter 4. Mangoes Round the Year
Introduction, Occurrence of Microbes, Harmful Bacteria, Food Poisoning, Food Preservation
Chapter 5. Seeds and Seeds
Introduction, Sprouting of seeds, How does a big plant grow from a tiny seed?, How long did it take for the plant to come out from the soil?, Light seeds
Chapter 6. Every Drop Counts
Introduction, Importance of water, Flood, Drought, Water pollution and its causes, Water harvesting
Chapter 7. Experiments with Water
Density, Soluble substances, Insoluble Substances, Solutions
Chapter 8. A Treat for Mosquitoes
Spreading of diseases, Malaria
Chapter 12. What if it Finishes
A bus journey, Treasure from the earth, Petrol, Harmful effects of burning a fuel
Chapter 13. A Shelter so High!
Types of houses, Desert, Houses in mountainous regions
Chapter 15. Blow Hot, Blow Cold
Flow of air, Breathing, Air, Characteristics of air, Uses of Air
Chapter 16. Who will do this Work?
Cleanliness, keeping cleanliness around the house, Keeping neighbourhood clean, Steps to be taken to clean surroundings
Chapter 19. A Seed tells a Farmer’s Story
Seeds, Vegetables, Growing of Crops, Protection of crops
Chapter 20. Whose Forests?
Introduction, Natural Resources, Forest Resources
Chapter 21. Like Father, Like Daughter
Heredity, Acquired and Inherited Traits
Chapter 22. On the Move Again
Festivals, After Dushera, National Festivals, Dushera, Religious Festivals, Harvest Festivals, Raksha Bandhan, Holi
MATHEMATICS
Chapter 1. The Fish Tale
Shapes, Large numbers, Estimations, Weight, Number System, Capacity, Time, Money, Roman Numerals
Chapter 2. Shapes and Angles
Line, Ray and Line segment, Triangle, Circle, Angles, Type of Angles, Uses of Ruler, Protractor and set squares, Measuring Angles, Quadrilaterals, Polygons
Chapter 3. How many Squares
Introduction, Area, Finding Area, Perimeter, Summary
Chapter 4. Parts and Wholes
Introduction, Parts of a whole, Fractions, Types of Fractions, Ascending and descending order of fractions, Reciprocal of fractions, Unit of fractions, Comparison of fractions, Conversion of fractions, Estimated fractions,Summary
Chapter 5. Does It Look The same?
Introduction, Make your Pattern, Mirror Halves, Symmetry, Line of symmetry, Rotational Symmetry
Chapter 6. Be my Multiple,I’ll be your Factor
Introduction, Multiples, Factors, Common Multiples, Common Factors, Prime and composite numbers, Prime factorisation, Highest Common Factor, Lowest Common Multiple, Co-prime numbers, Divisibility Test
Chapter 7. Can You see the Pattern?
Introduction, Look for a pattern, Patterns, Number Patterns, Even and odd Number Patterns. Square and Triangluar Numbers
Chapter 8. Mapping Your Way
Introduction to Maps, Maps, Type of maps, Signs and Symbols, Directions
Chapter 9. Boxes and Sketches
Introduction, 2 Dimensional Shapes, 3 Dimensional Shapes, Nets for making 3D Model, Drawing 3d objects in 2D, Drawing 2d shapes using 3d Objects, Rotation and Reflection of 2D shapes
Chapter 10. Tenths and Hundredths
Introduction, Decimals, Operations of Decimals, Expansion of Decimals, Comparision of Decimals, Representing decimal fractions, Metric system of Measurements, Basic Units used in metric System, Conversion of metric units, Converting metric units to Decimals, Percentages
Chapter 11. Area and Its Boundary
Introduction, Area, Perimeter, Area of Parallogram
Chapter 12. Smart Charts
Introduction, Data, Collection and Organizing of Data, Making Tally Marks, Bar graphs, Pictograph, Graphical representation of data
Chapter 13. Ways to multiple and Divide
Introduction, Maniratnam, Multiplication, Multiplication by lattice algorithm, Patterns in multiplication, Division, Summary
Chapter 14. How Big? How Heavy?
Introduction, Solids, Volume, Volume of cube, Volume of cubiod, Mass, Lengths
ENGLISH
Unit I
1. Bamboo Curry (Story)
2. Wonderful Waste! (Story)
3. Ice-cream Man (Poem)
Unit II
1. Flying Together (Story)
2. Team Work (Poem)
Unit III
1. Robinson Crusoe (Story)
2. My Shadow(Poem)
Unit IV
1. My Elder Brother (Story)
2. Crying (Poem)
Unit V
1. Rip Van Winkle (Story)
2. The Lazy Frog (Poem)
Unit VI
1. The Talkative Barber (Story)
2. Class Discussion (Poem)
Unit VII
1. Gulliver’s Travels (Story)
2. Topsy-turvy Land (Poem)
Unit VIII
1. The Little Bully (Story)
2. Nobody’s Friend (Poem)
Unit IX
1. Around the World (Story)
2. Sing a Song of People (Poem)
Unit X
1. Who Will be Ningthou? (Story)
2. Malu Bhalu (Poem)
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