SKU: 27231821305

Yes, but why? Teaching for understanding in mathematics

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Yes, but why? Teaching for understanding in mathematicsGetting the right answers in maths is only half the problem. Understanding why what you're doing works is the part that often stumps students and teachers alike. The essential guide for mathematics teachers and those training to teach, Yes, but why? answers all your questions, and sheds light on the hidden connections between everything in mathematics at school. This second edition includes:* A new 'Test yourself' feature in every chapter* More

Getting the right answers in maths is only half the problem. Understanding why what you're doing works is the part that often stumps students and teachers alike. The essential guide for mathematics teachers and those training to teach, Yes, but why? answers all your questions, and sheds light on the hidden connections between everything in mathematics at school. This second edition includes:* A new 'Test yourself' feature in every chapter* More coverage of the four operations * Enhanced discussion of fractions and proportionality * Downloadable figures for use in the classroom

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SKU: 27231821305

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Amazon Customer
Massapequa, US
★★★★★ 5
Good value.
Style: 20 Ounces, Size: 150 Count (6 Packs of 25 Bowls)
Good value. Good Product.
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Reviewed in the United States on May 27, 2026
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Hatice Karaca
Charlottesville, US
★★★★★ 5
Dermatologist recommended it!
Size: 1.3 Ounce (Pack of 1)
This is my 11th order of this product. I originally started using it a few years ago when my dermatologist recommended it during a period of hormonal acne. I’ve been using it ever since. I have very sensitive skin that usually reacts to almost everything, either with redness or breakouts, but I can use this cream comfortably without any issues. It is very gentle, deeply hydrating, and has become a permanent part of my skincare routine. It is definitely worth the price. Even a small amount provides excellent hydration and it lasts a long time. I also love that it has a natural ingredients and is fragrance-free.
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Reviewed in the United States on April 14, 2026
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Jill
Alexandria, US
★★★★★ 5
Game changer.
Size: 1.3 Ounce (Pack of 1)
I moved out to Arizona back in 2020 and shortly after that, I became a reptile. My skin would become flaky and peel and I tried several different types of facial creams and lotions with no luck. I went to a dermatologist who recommended CeraVe, and it did help my skin to an extent. It took care of the flakiness, but I would still see the dryness, especially when I looked in the mirror up close. I recently was on Google doing a search and came across this brand. I thought I’d give them a try and though I was skeptical, my skin has not looked this good in years. My skin feels smooth, hydrated and NO greasiness. I highly recommend this product.
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Reviewed in the United States on September 1, 2025
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Kelly
Alexandria, US
★★★★★ 5
Wonderfully effective and slightly bougie
Size: 1.3 Ounce (Pack of 1)
I have dry not so sensitive skin. I love the way this smells and feels on my tired parched face.
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Reviewed in the United States on October 25, 2025
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Amazon Customer
Boise, US
★★★★★ 5
Cleared up my flaky skin problem, helps keeps my facial skin soft year round
Size: 1.3 Ounce (Pack of 1)
I bought this full-size tube of Avene Hydrance Optimale Rich Hydrating Cream after falling in love with a small sample tube that came in a subscription box. At the time I received the sample, I was battling an unusual case of dry flaky skin that was embarrassing. Within a few days of regular use, my skin looked like new. Soft and clear. The tiny sample lasted a long time, so I didn't hesitate to buy the full-size tube even at this price. I use this every morning and night after cleansing my face. My skin stays soft, even with the dry winter skin and drying indoor heat. My makeup glides on smoothly. This is my go-to moisturizer year round now. Another reviewer mentioned being concerned her product may be counterfeit. I only buy products like this when it says Sold by Amazon and not a third party so I make sure I get authentic, fresh products every time.
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Reviewed in the United States on February 26, 2018

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