Here are some resources for parents:

• http://www.wfsd.k12.ny.us/wfdocs/files/commoncore/math-guide-third.pdf
• https://www.edutopia.org/blog/ccss-3rd-grade-math-strategies-mary-beth-hertz
• https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-add-sub-topic  (this website is free of charge)
• https://corelaboratewa.org/three-common-core-strategies-for-division/
• http://www.corestandards.org/Math/Content/OA/  
• http://www.mathgoodies.com/standards/alignments/grade3.html    

Reading strategies at home: 

http://resources.clee.utk.edu/print/SIG%20Reading%20Strategies.pdf  

http://www.scholastic.com/parents/resources/article/developing-reading-skills/reading-comprehension-and-decoding-strategies      

http://www.slipperyrock.k12.pa.us/Downloads/Tips_for_Parents.pdf 

https://reports05.nwea.org/nwea/help/DRS_Inst_Strat.pdf    

Writing strategies:

https://www.superduperinc.com/handouts/pdf/148_Improving%20Writing%20Skills.pdf  

http://www.cabrillo.k12.ca.us/faralloneview/files/Parents_Support_Reading_Writing.pdf