These are wonderful, highly rated history and geography lessons and texts that offer you an excellent resource to both local and home schools for the 3rd and 4th grade levels. Two books are available for each subject area: a Student Reader and Teacher Guide, which contains Answer Keys for the unit being studied.
Grade 3 Unit-1 World Rivers
Grade 3 Unit-2 Ancient Rome
Grade 3 Unit-3 Vikings
Grade 3 Unit-4 Earliest Americans
Grade 3 Unit-5-6 Canada Exploration – NorthAmerica
Grade 3 Unit-7 Thirteen Colonies
Grade 4 Unit-1-2 Using Maps and World Mountains
Grade 4 Unit-3 Medieval Europe
Grade 4 Unit-4-5 Islamic Empires – African Kingdoms
Grade 4 Unit-6 Dynasties of China
Grade 4 Unit-7 American Revolution
Grade 4 Unit-8 United States Constitution
Grade 4 Unit-9-10 EarlyPresidents – AmericanReformers
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-love learning -your best ed lessons guru, Scott