Stumptuous is wonderful (if sometimes hard to navigate), and it sounds like you're starting out in a very sensible way. Do you have any specific goals, or is this an overall "get stronger" plan?
As thalia said, ramp up slowly, and don't try to do everything at once. Make sure you give your muscles time to recover after each strength workout; at a minimum, you don't want to work the same muscles on consecutive days.
Planks are wonderful. As you start to feel more comfortable with them, you can try doing side planks too.
Squats can be really hard (depending on your body proportions and flexibility), and really hard to learn to do correctly, but in my experience the effort pays huge dividends in the long-term. As well as being a great exercise, they teach you all sorts of useful things about body mechanics and how (for example) to protect your knees.
I'd say forget the weights and just do them with bodyweight for now, until you feel confident with the form. Bodyweight can be plenty, and you can reach your arms out in front of you to help balance, or put them behind your head to make it harder.
Have you found the other Stumptuous articles about squatting in this section? This one may be especially handy:
Bicep curls are an isolation exercise: they only work one specific muscle. So, they're useful if you want to strengthen your biceps, but won't do anything for the rest of your body. On the other hand, they're a simple and safe exercise for learning about sets and reps, and getting a sense of how it feels to get stronger. So, do them if you like them! But depending on your goals, you might want to ditch them later in favour of more whole-body exercises.
Apart from the things I've mentioned in my other comment, the one thing I'd suggest adding now would be a back exercise: maybe superman or bird-dog (both of which you can see in this video). Great for preventing back problems, and also great for teaching awareness and control of your lower back, which will pay off in squats and deadlifts and all sorts of other exercises.
\o/ Welcome newbie! *g*
As
Planks are wonderful. As you start to feel more comfortable with them, you can try doing side planks too.
Squats can be really hard (depending on your body proportions and flexibility), and really hard to learn to do correctly, but in my experience the effort pays huge dividends in the long-term. As well as being a great exercise, they teach you all sorts of useful things about body mechanics and how (for example) to protect your knees.
I'd say forget the weights and just do them with bodyweight for now, until you feel confident with the form. Bodyweight can be plenty, and you can reach your arms out in front of you to help balance, or put them behind your head to make it harder.
Have you found the other Stumptuous articles about squatting in this section? This one may be especially handy:
http://www.stumptuous.com/lurn-to-squat-good-e-zy
Bicep curls are an isolation exercise: they only work one specific muscle. So, they're useful if you want to strengthen your biceps, but won't do anything for the rest of your body. On the other hand, they're a simple and safe exercise for learning about sets and reps, and getting a sense of how it feels to get stronger. So, do them if you like them! But depending on your goals, you might want to ditch them later in favour of more whole-body exercises.
Apart from the things I've mentioned in my other comment, the one thing I'd suggest adding now would be a back exercise: maybe superman or bird-dog (both of which you can see in this video). Great for preventing back problems, and also great for teaching awareness and control of your lower back, which will pay off in squats and deadlifts and all sorts of other exercises.