Number Bond Learner

Had the fabulous opportunity to co-present with Kristin Hilty and Ricky Mikelman recently and learned a lot by seeing them in action.  One thing, in particular, was the movement from concrete to pictorial to abstract (and the bridges between) while modeling number bonds and all their potential.  The picture shows number bracelets (thanks Catherine Kuhns), then making tens, and the relationship to pace value of that number.  What made me fall in love with number bonds from the onset was where they can lead with larger numbers, time, decimals, fractions, etc.  The possibilities are endless when you understand the part to whole relationship.  We also had SO many math talks at lunch, dinner, in our hotel room, and in the car.  What has inspired your recently?